forged steel flanges

• 2 •

1. Holes accurately drilled for ease of assembly.

2. Spot facing ensures seating of fasteners true and square.

3. Grain flow controlled for maximum strength.

4. Smooth accurate bore for unrestricted flow.

5. Machined bevel and land facilitate good welding.

6. All faces machined within tolerances to ensure true alignment.

7. Full identification of size, pressure class, material and heat code.

• 3 •

forgedsteel flanges

indexFlAnGeS clASS 150 (Pn20) to clASS 2500 (Pn 420) Welding neck, Slip-on, Threaded, Socket Welding lap Joint, Blind ...................................................................................................6

reducing flanges Welding neck, Threaded, Slip-on .......................................................................Page 18

oriFice FlAnGeS clASS 300 - 1500 (Pn 50-250) Welding neck, Slip-on, Threaded .......................................................................Page 24

long welding necks ...........................................................................................Page 33

large diameter flanges class 125 lW Slip-on .........................................................................................Page 34 class 125 Welding neck, Slip-on, Blind .............................................................Page 35 class 250 ............................................................................................................Page 36 class 75 ..............................................................................................................Page 37 class 175 ............................................................................................................Page 38 class 350 ............................................................................................................Page 39 AWWA class B, D, e, Slip-on .............................................................................Page 40 class 150 Series A ASMe B16.47 ......................................................................Page 41 class 150 Series B ASMe B16.47 ......................................................................Page 46

engineering and design data Bolt and Stud Dimensions ..................................................................................Page 22 Flange Facing Dimensions ..................................................................................Page 20 Flange Facing and Finish Data .............................................................................Page 4 Gasket Dimensions .............................................................................................Page 20 identification, Marking .........................................................................................Page 47 Manufacturing Standards, Specifications .............................................................Page 5 materials ................................................................................................................Page 5 ring Joint Dimensions ........................................................................................Page 30 Tolerances ...........................................................................................................Page 47 Welding Bevels ....................................................................................................Page 48

• 4 •

FlAnGe TyPeS, FAcinGS AnD FiniSheSansi flangesMost forged steel flanges correspond to the requirements of the American Standards Association (ASMe/AnSi Standard B16.5) and the ASTM Specification A-105.The following types are manufactured and stocked:Welding neck flanges, available in all pressure ratings and sizes, are butt-welded to the end of the pipe, and are usually specified when service conditions are severe and excellent workmanship necessary. Since the inside diameter of the flange must match that of the pipe, the flange bore should be specified in ordering.Slip-on flanges, also available in most pressure ratings and sizes, are a popular type due to their ease of application. This flange slips over the end of the pipe and is usually set so that the flange face is about .375" (9.5mm) beyond the end of the pipe. This permits double-welding of the flange - one strength fillet weld to join the hub of the flange to the pipe, and a seal fillet weld inside the flange at the end of the pipe. Where operating conditions permit, the seal weld is omitted.Slip-on flanges are most frequently used at lower pressure - class 150 (Pn 20) or class 300 (Pn 50) primary service pressure ratings. Many pipe designers are reluctant to use slip-ons for higher pressures, since (1) the joint between the flange and pipe is not as strong as in the welding neck type; and (2) the junction of the flange and pipe is more susceptible to corrosion.Screwed or Threaded flanges are attached to the pipe like any other screwed fittings, and may be back-welded to seal the joint between pipe and flange. Although still available in most sizes and pressure ratings, screwed fittings today are used almost exclusively in smaller pipe sizes and at low pressures.lap Joint or Van Stone flanges are used on piping equipped with lap joint stub ends or with lapped pipe. They may be used at all pressures and are available in a full size range. These flanges slip over the pipe, and are not welded or otherwise fastened to it; bolting pressure is transmitted to the gasket by the pressure of the flange against the back of the pipe lap.lap Joint flanges have certain special advantages: (1) freedom to swivel around the pipe facilitates the lining up of opposing flange bolt holes; (2) lack of contact with the fluid in the pipe often permits the use of inexpensive carbon steel flanges with corrosion resistant pipe or tubing; (3) in systems which erode or corrode quickly, the flanges may be salvaged for re-use.Socket-welding flanges contain a recess in the back of the flange to receive the end of the pipe, which is attached by a fillet weld around the hub of the flange. Since socket-welding connections are not as strong as butt-welded joints, the use of this type of flange is almost always confined to nPS 4 (Dn 100) and smaller sizes, and to the lower pressure ratings. its chief advantage lies in the ease of preparation and installation.Blind flanges, available in all sizes and pressure ratings, are solid forgings used to close off the end of a piping system and to gain easy access to the interior of the line.reducing flanges are available. refer to page 18.

flange facingsUnless otherwise specified, class 150 (Pn 20) and class 300 (Pn 50) flanges in all types except lap joint (or Van Stone) flanges are furnished with a .06" (1.6mm) raised face (which is included in the flange thickness dimension). heaver pressure ratings are machined with a .25" (6.4 mm) raised face, in addition to the designated flange thickness.When so ordered, these flange types can be furnished with a variety of other facings, such as male and female, ring joint, tongue and groove, etc.lap Joint flanges are machined with a flat face and a fillet radius to accommodate the stub end or pipe lap.

flange finishesThe finish of contact faces of pipe flanges and connecting end flanges of fittings shall be judged by visual comparison with AArh Standards and not by instruments having stylus tracers and electronic amplification (see AnSi/ASMe B46.1)The finishes required are given below. other finishes may be furnished upon application.raised face and large male and female: either a serrated-concentric or serrated-spiral finish having from 45 to 55 grooves per inch (0.6 to 1mm pitch) shall be used. The cutting tool employed shall have an approximate 0.06" (1.6mm) or larger radius. The resultant surface shall have a 125 to 250 microinch roughness.TonGUe AnD GrooVe AnD SMAll MAle AnD FeMAle: The gasket contact shall not exceed 125 microinch roughness.rinG JoinT: The side wall surface of gasket groove shall not exceed 63 microinch roughness.

other typesin addition to the AnSi flanges, the following types are carried in stock:orifice flanges are used for measuring fluid flow in piping systems. Their design conforms to the recommendations of the American Gas Association’s committee on Gas Measurement. commonly furnished as either welding neck or slip-on type, they may also be ordered as screwed flanges. orifice unions are available in class 300 (Pn 50) and heavier pressure ratings.each orifice flange is equipped with two radially-drilled, tapped holes for metering, and with jack-screws to facilitate separation of the joint for removal of the orifice metering plate. orifice flanges, unless otherwise specified, are furnished in pairs as a flange union, complete with bolts, nuts and jack-screws - but without the orifice plate. Gaskets are supplied with raised face flange unions, but not for ring-joint faced flanges, which use an integral gasket and orifice plate.light Weight Slip-on flanges, drilled to class 125 AnSi Standards but of lighter construction than the regular slip-on type, are available for low-pressure systems.large Diameter flanges, in sizes beyond the B16.5 range, are available for special installations. Dimensions given herein are those most commonly used; however, flanges and rolled rings for large diameter pipe or for vessels and tanks can readily be made to other specifications.long Welding necks are used primarily for outlets for vessels and tanks. Drilled to AnSi Standards, they are forged with long, heavy-wall, straight hubs, and finished with square cut ends.

• 5 •

material andmanufacturing

standards

The manufacturing of forged steel flanges is governed by industry standards written by (1) the American Society for Testing and Materials (ASTM); (2) the American national Standards institute (AnSi); (3) the Manufacturer’s Standardization Society of the Valve and Fittings industry (MSS); (4) the American Petroleum institute (APi); (5) the canadian Standards Association (cSA); (6) the American Society of Mechanical engineers (ASMe); and (7) the Pipe Fabrication institute (PFi). They cover specifications for materials, methods of manufacture, dimensions and quality control procedures. WeSTlUnD forged steel flanges conform to all applicable standards.

astM specificationsASTM specifications are, basically, materials specifications. They regulate approved raw materials from which flanges can be made - ingots, or blooms, billets, slabs or bars. in addition, they govern the methods of manufacture, quality control procedures and markings of forged steel flanges. ASTM specifications are divided into five categories: A105 - carbon grades for high temperature service A181 - carbon grades for general service * A182 - Alloy and stainless grades for high temperature service A350 - carbon and alloy grades for low temperature service

*WeSTlUnD flanges are available in a wide range of alloy and stainless steels, including grades F304, F304l, F316, F316l. Please refer to WeSTlUnD catalogue “Stainless Steel Flanges” for the popular classes 150 and 300 (Pn 20 and 50).

Mss, api, awwa, ansi and csa standardsAnSi, MSS and APi standards govern flange dimensions and tolerances. ASMe/AnSi B16.5, titled “Steel Pipe Flanges and Flanged Fittings”, is the basic standard. it covers forged steel flanges, sizes nPS 1/2 (Dn 15) through nPS 24 (Dn 600). cSA standard cAn3-Z245 12-M96 covers the manufacture, dimensions, tolerances and material requirements for pipe line flanges. ASMe/AnSi B16.36 covers orifice flanges. The following MSS, APi and AWWA standards are written to supplement B16.5: MSS SP-6: Flange facings MSS SP-9: Spot facing for bronze, iron and steel flanges MSS SP-25: Marking of flanges MSS SP-39: Bolts and nuts for flanges APi6A: Wellhead equipment AWWA c207: hub flanges

The following codes are not flange specifications, but they influences the manufacture of forged steel flanges: ASMe: Boiler and Pressure Vessel code ASMe/AnSi B31.1: Power Piping ASMe/AnSi B31.3: Petroleum and refinery piping ASMe/AnSi B31.4: liquid petroleum transportation piping systems ASMe/AnSi B31.5: refrigeration piping ASMe/AnSi B31.8: Gas transmission and distribution piping systems AnSi/ASMe B36.10M: Standard for wrought steel pipe AnSi/ASMe B36.19M: Standard for stainless steel pipe AnSi/ASMe B16.47: large diameter pipe line flanges nPS 22 (Dn 550) and nPS 26 (Dn 650) through nPS 36 (Dn900)

Metric equivalentsThe international System (Si) metric equivalent of British units are shown throughout this catalogue.nPS (nominal Pipe Size) = Dn* (nominal Diameter)operating Pressure class = Pn* (Pressure number)1 inch = 25.4 millimetres1 pound, weight = 0.4536 kilograms1 pound, pressure = 0.06895 bars1 p.s.i., stress = 0.006895 megapascals (MPa)

*From the Si designations, Diamètre nominal and Pression nominale.

• 6 •

1 Socket Welding Flanges, sizes nPS 3 1/2 (Dn 90) and larger are not

covered by ASMe/AnSi B16.5.2 includes .06" (1.6 mm) raised face.

3 These dimensions correspond to inside diameters of pipe as given in

AnSi/ASMe B36.10M for Standard Wall Pipe. Thickness of Standard Wall is the same as Schedule 40 in size nPS 10 (Dn 250) and smaller.

bore length tru hub 2

flangeoutside

diaMetero

nps dn

flange2

thicknessMin.

t

raisedfacedia.

a

weldingneck &socket

weldingb3

slip-on &socket weld

socketMin.

c

lapjointMin.

d

weldingneck

f

slip-on,threaded &sock. weld

g

lapjoint

h 1/2 3.50 .44 1.38 .62 .88 .90 1.88 .62 .62 15 89 11.5 34.9 15.8 22.2 22.9 47.6 16 16 3/4 3.88 .50 1.69 .82 1.09 1.11 2.06 .62 .62 20 98 13.0 42.9 20.8 27.8 28.2 52.4 16 16 1 4.25 .56 2.00 1.05 1.36 1.38 2.19 .69 .69 25 108 14.5 50.8 26.7 34.5 34.9 55.6 17 17 1 1/4 4.62 .62 2.50 1.38 1.70 1.72 2.25 .81 .81 32 117 16.0 63.5 35.1 43.2 43.7 57.1 21 21 1 1/2 5.00 .69 2.88 1.61 1.95 1.97 2.44 .88 .88 40 127 17.5 73.0 40.9 49.5 50.0 61.9 22 22 2 6.00 .75 3.62 2.07 2.44 2.46 2.50 1.00 1.00 50 152 19.5 92.1 52.6 61.9 62.5 63.5 25 25 2 1/2 7.00 .88 4.12 2.47 2.94 2.97 2.75 1.12 1.12 65 178 22.5 104.8 62.7 74.6 75.4 69.8 29 29 3 7.50 .94 5.00 3.07 3.57 3.60 2.75 1.19 1.19 80 191 24.0 127.0 78.0 90.7 91.4 69.8 30 30 3 1/2 8.50 .94 5.50 3.55 4.07 4.10 2.81 1.25 1.25 90 216 24.0 139.7 90.2 103.4 104.1 71.4 32 32 4 9.00 .94 61.9 4.03 4.57 4.60 3.00 1.31 1.31 100 229 24.0 157.2 102.4 116.1 116.8 76.2 33 33 5 10.00 .94 7.31 5.05 5.66 5.69 3.50 1.44 1.44 125 254 24.0 185.7 128.3 143.7 144.5 88.9 36 36 6 11.00 1.00 8.50 6.07 6.72 6.75 3.50 1.56 1.56 150 279 25.5 215.9 154.2 170.7 171.4 88.9 40 40 8 13.50 1.12 10.62 7.98 8.72 8.75 4.00 1.75 1.75 200 343 29.0 269.9 202.7 221.5 222.2 101.6 44 44 10 16.00 1.19 12.75 10.02 10.88 10.92 4.00 1.94 1.94 250 406 30.5 323.8 254.5 276.2 277.4 101.6 49 49 12 19.00 1.25 15.00 12.00 12.88 12.92 4.50 2.19 2.19 300 483 32.0 381.0 304.8 327.0 328.2 114.3 56 56 14 21.00 1.38 16.25 14.14 14.18 5.00 2.25 3.12 350 535 35.0 412.8 359.2 360.2 127.0 57 79 16 23.50 1.44 18.50 16.16 16.19 5.00 2.50 3.44 400 595 37.0 469.9 410.4 411.2 127.0 64 87 18 25.00 1.56 21.00 18.18 18.20 5.50 2.69 3.81 450 635 40.0 533.4 461.8 462.3 139.7 68 97 20 27.50 1.69 23.00 20.20 20.25 5.69 2.88 4.06 500 700 43.0 584.2 513.1 514.3 144.5 73 103 24 32.00 1.88 27.25 24.25 24.25 6.00 3.25 4.38 600 815 48.0 692.2 615.9 615.9 152.4 83 111

to be

specified

by

purchaser

incHes

millimetres

pounds

kilograms • 7 •

For bevel of Welding neck, see page 48.

Gasket dimensions - page 20.

Bolting dimensions - page 22.

Flange facing dimensions - page 20.

diaMeter of hubdrilling approxiMate weight

no. ofholesnps

dn

dia. ofholes

j

dia. ofbolt

circlek

depth1

ofsocket

l

atbase

M

atchaMfer

n

lapjointfilletradius

r

weldingneck

slip-on,threaded &

socket welding1

lapjointblind

1/2 4 .62 2.38 .38 1.19 .84 .12 2 1 1 1 15 4 16 60.3 10 30.2 21.4 3 0.9 .05 0.5 0.5 3/4 4 .62 2.75 .44 1.50 1.05 .12 2 2 2 2 20 4 16 69.8 11 38.1 26.6 3 0.9 0.9 0.9 0.9 1 4 .62 3.12 .50 1.94 1.32 .12 3 2 2 2 25 4 16 79.4 13 49.2 33.5 3 1.4 0.9 0.9 0.9 1 1/4 4 .62 3.50 .56 2.31 1.66 .19 3 3 3 3 32 4 16 88.9 14 58.7 42.1 5 1.4 1.4 1.4 1.4 1 1/2 4 .62 3.88 .62 2.56 1.90 .25 4 3 4 3 40 4 16 98.4 16 65.1 48.3 6 1.8 1.4 1.8 1.4 2 4 .75 4.75 .69 3.06 2.38 .31 6 5 5 5 50 4 20 120.6 17 77.6 60.4 8 2.7 2.3 2.3 2.3 2 1/2 4 .75 5.50 .75 3.56 2.88 .31 8 7 7 7 65 4 20 139.7 19 90.5 73.0 8 3.6 3.2 3.2 3.2 3 4 .75 6.00 .81 4.25 3.50 .38 10 8 9 8 80 4 20 152.4 21 107.9 88.9 10 4.5 3.6 4.1 3.6 3 1/2 8 .75 7.00 - 4.81 4.00 .38 12 11 13 11 90 8 20 177.8 - 122.2 101.6 10 5.4 5.0 5.9 5.0 4 8 .75 7.50 - 5.31 4.50 .44 15 13 17 13 100 8 20 190.5 - 134.9 114.3 11 6.8 5.9 7.7 5.9 5 8 .88 8.50 - 6.44 5.56 .44 19 15 20 15 125 8 23 215.9 - 163.5 141.3 11 8.6 6.8 9.1 6.8 6 8 .88 9.50 - 7.56 6.63 .50 24 19 26 19 150 8 23 241.3 - 192.1 168.3 13 10.9 8.6 11.8 8.6 8 8 .88 11.75 - 9.69 8.63 .50 39 30 45 30 200 8 23 298.4 - 246.1 219.1 13 17.7 13.6 20.4 13.6 10 12 1.00 14.25 - 12.00 10.75 .50 52 43 70 43 250 12 26 361.9 - 304.8 273.0 13 23.6 19.5 31.8 19.5 12 12 1.00 17.00 - 14.38 12.75 .50 80 64 110 64 300 12 26 431.8 - 365.1 323.8 13 36.3 29.0 49.9 29.0 14 12 1.12 18.75 - 15.75 14.00 .50 110 90 140 105 350 12 29 476.2 - 400.0 355.6 13 50.0 41.0 63.5 47.6 16 16 1.12 21.25 - 18.00 16.00 .50 140 98 180 140 400 16 29 539.7 - 457.2 406.4 13 64.0 44.5 81.6 63.5 18 16 1.25 22.75 - 19.88 18.00 .50 150 130 220 160 450 16 32 577.8 - 504.8 457.2 13 68.0 59.0 99.8 72.6 20 20 1.25 25.00 - 22.00 20.00 .50 180 165 285 195 500 20 32 635.0 - 558.8 508.0 13 81.6 75.0 129.0 88.5 24 20 1.38 29.50 - 26.12 24.00 .50 260 220 430 275 600 20 35 749.3 - 663.6 609.6 13 118 99.8 195.0 125.0

clASS 150 (Pn20)flanges

forged steelASTM A-105

1ASMe/AnSi B16.5

incHes

millimetres• 8 •


covered by ASMe/AnSi B16.5.2 includes .06" (1.6 mm) raised face.

3 These dimensions correspond to inside diameters of pipe as given in

AnSi/ASMe B36.10M for Standard Wall Pipe. Thickness of Standard Wall is the same as Schedule 40 in size nPS 10 (Dn 250) and smaller.

bore length thru hub 2

flangeoutside

diaMetero

nps dn

flange2

thicknessMin.

t

raisedfacedia.

a

weldingneck &socket

weldingb3

slip-on &socket weld

socketMin.

c

lapjointMin.

d

threaded counter-

boreMin.

e

weldingneck

f

slip-on,threaded &sock. weld

g

lapjoint

h 1/2 3.75 .56 1.38 .62 .88 .90 .93 2.06 .88 .88 15 95 14.5 34.9 15.8 22.2 22.9 23.5 52.4 22 22 3/4 4.62 .62 1.69 .82 1.09 1.11 1.14 2.25 1.00 1.00 20 117 16.0 42.9 20.8 27.8 28.2 29.0 57.1 25 25 1 4.88 .69 2.00 1.05 1.36 1.38 1.41 2.44 1.06 1.06 25 124 17.5 50.8 26.6 34.5 34.9 36.0 61.9 27 27 1 1/4 5.25 .75 2.50 1.38 1.70 1.72 1.75 2.56 1.06 1.06 32 133 19.5 63.5 35.1 43.3 43.7 44.5 65.1 27 27 1 1/2 6.12 .81 2.88 1.61 1.95 1.97 1.99 2.69 1.19 1.19 40 156 21.0 73.0 40.9 49.6 50.0 50.5 68.3 30 30 2 6.50 .88 3.62 2.07 2.44 2.46 2.50 2.75 1.31 1.31 50 165 22.5 92.1 52.6 61.9 62.5 63.5 69.8 33 33 2 1/2 7.50 1.00 4.12 2.47 2.94 2.97 3.00 3.00 1.50 1.50 65 191 25.5 104.8 62.7 74.6 75.4 76 76.2 38 38 3 8.25 1.12 5.00 3.07 3.57 3.60 3.63 3.12 1.69 1.69 80 210 29.0 127.0 77.9 90.7 91.4 92 79.4 43 43 3 1/2 9.0 1.19 5.50 3.55 4.07 4.10 4.13 3.19 1.75 1.75 90 229 30.5 139.7 90.1 103.4 104.1 105 81.0 44 44 4 10.0 1.25 6.19 4.03 4.57 4.60 4.63 3.38 1.88 1.88 100 254 32.0 157.2 102.3 116.1 116.8 118 85.7 48 48 5 11.0 1.38 7.31 5.05 5.66 5.69 5.69 3.88 2.00 2.00 125 279 35.0 185.7 128.2 143.7 144.5 145 98.4 51 51 6 12.5 1.44 8.50 6.07 6.72 6.75 6.75 3.88 2.06 2.06 150 318 37.0 215.9 154.1 170.7 171.4 171 98.4 52 52 8 15.0 1.62 10.62 7.98 8.72 8.75 8.75 4.38 2.44 2.44 200 381 41.5 269.9 202.7 221.5 222.2 222 111.1 62 62 10 17.5 1.88 12.75 10.02 10.88 10.92 10.88 4.62 2.62 3.75 250 445 48.0 323.8 254.5 276.2 277.4 276 117.5 67 95 12 20.5 2.00 15.00 12.00 12.88 12.92 12.94 5.12 2.88 4.00 300 520 51.0 381.0 304.8 327.0 328.2 329 130.2 73 102 14 23.0 2.12 16.25 14.14 14.18 14.19 5.62 3.00 4.38 350 585 54.0 412.8 359.2 360.2 360 142.9 76 111 16 25.5 2.25 18.50 16.16 16.19 16.19 5.75 3.25 4.75 400 650 57.5 469.9 410.4 411.2 411 146.0 83 121 18 28.0 2.38 21.00 18.18 18.20 18.19 6.25 3.50 5.12 450 710 60.5 533.4 461.8 462.3 462 158.7 89 130 20 30.5 2.50 23.00 20.20 20.25 20.19 6.38 3.75 5.50 500 775 63.5 584.2 513.1 514.3 513 161.9 95 140 24 36.0 2.75 27.25 24.25 24.25 24.19 6.62 4.19 6.00 600 915 70.0 692.2 615.9 615.9 614 168.3 106 152

to be

specified

by

purchaser

• 9 •


covered by ASMe/AnSi B16.5.For bevel of Welding neck, see page 48.





no. ofholesnps

dn

dia. ofholes

j

dia. ofbolt

circlek

depth1

ofsocket

l

atbase

M

atchaMfer

n


rwelding

neck

slip-on,threaded &

socket welding1

lapjointblind

1/2 4 .62 2.62 .38 1.50 .84 .12 2 2 2 2 15 4 16 66.7 10 38.1 21.4 3 0.9 0.9 0.9 0.9 3/4 4 .75 3.25 .44 1.88 1.05 .12 3 3 3 3 20 4 20 82.5 11 47.6 26.6 3 1.4 1.4 1.4 1.4 1 4 .75 3.50 .50 2.12 1.32 .12 4 3 3 3 25 4 .20 88.9 13 53.8 33.5 3 1.8 1.4 1.4 1.4 1 1/4 4 .75 3.88 .56 2.50 1.66 .19 5 4 4 4 32 4 20 98.4 14 63.5 42.1 5 2.3 1.8 1.8 1.8 1 1/2 4 .88 4.50 .62 2.75 1.90 .25 7 6 6 6 40 4 23 114.3 16 69.9 48.3 6 3.2 2.7 2.7 2.7 2 8 .75 5.00 .69 3.31 2.38 .31 9 7 8 7 50 8 20 127.0 17 84.1 60.3 8 4.1 3.2 3.6 3.2 2 1/2 8 .88 5.88 .75 3.94 2.88 .31 12 10 12 10 65 8 23 149.2 19 100.0 73.0 8 5.4 4.5 5.4 4.5 3 8 .88 6.62 .81 4.62 3.50 .38 15 13 16 13 80 8 23 168.3 21 117.5 88.9 10 6.8 5.9 7.3 5.9 3 1/2 8 .88 7.25 - 5.25 4.00 .38 18 17 21 17 90 8 23 184.1 - 133.3 101.6 10 8.2 7.7 9.5 7.7 4 8 .88 7.88 - 5.75 4.50 .44 25 22 27 22 100 8 23 200.0 - 146.0 114.3 11 11.3 10.0 12.2 10.0 5 8 .88 9.25 - 7.00 5.56 .44 32 28 35 28 125 8 23 234.9 - 177.8 141.3 11 14.5 12.7 15.9 12.7 6 12 .88 10.62 - 8.12 6.63 .50 42 39 50 39 150 12 23 269.9 - 206.4 168.3 13 19.0 17.7 22.7 17.7 8 12 1.00 13.0 - 10.25 8.63 .50 67 58 81 58 200 12 26 330.2 - 260.3 219.1 13 30.4 26.3 36.7 26.3 10 16 1.12 15.25 - 12.62 10.75 .50 91 81 125 91 250 16 29 387.3 - 320.7 273.0 13 41.3 36.7 56.7 41.3 12 16 1.25 17.75 - 14.75 12.75 .50 140 115 185 140 300 16 32 450.8 - 374.6 323.8 13 63.5 52.2 83.9 63.5 14 20 1.25 20.25 - 16.75 14.00 .50 180 165 250 190 350 20 32 514.3 - 425.5 355.6 13 81.6 74.8 113 86.2 16 20 1.38 22.50 - 19.00 16.00 .50 250 190 295 250 400 20 35 571.5 - 482.6 406.4 13 113 86.2 134 113 18 24 1.38 24.75 - 21.00 18.00 .50 320 250 395 295 450 24 35 628.6 - 533.4 457.2 13 145 113 179 134 20 24 1.38 27.00 - 23.12 20.00 .50 400 315 505 370 500 24 35 685.80 - 587.4 508.0 13 181 143 229 168 24 24 1.62 32.00 - 27.62 24.00 .50 580 475 790 550 600 24 42 812.80 - 701.7 609.6 13 263 215 358 249

clASS 300 (Pn50)flanges


1ASMe/AnSi B16.5

pounds

kilograms

incHes


1 including socket welding flanges

2 Does not include .25" (6.4 mm) raised face.


flangeoutside

diaMetero

nps dn

flange2

thicknessMin.

t

raisedfacedia.

a

weldingneck

b

slip-on,Min.

c

lapjointMin.

d

threaded counter-

boreMin.

e

weldingneck

f

slip-on,threaded

g

lapjoint

h 4 10 1.38 6.19 4.57 4.60 4.63 3.5 2 2 100 254 35.0 157.2 116.1 116.8 118 88.9 51 51 5 11 1.50 7.31 5.66 5.69 5.69 4 2.12 2.12 125 279 38.5 185.7 143.7 144.5 145 101.6 54 54 6 12.5 1.62 8.5 6.72 6.75 6.75 4.06 2.25 2.25 150 318 41.5 215.9 170.7 171.4 171 103.2 57 57 8 15 1.88 10.62 8.72 8.75 8.75 4.62 2.69 2.69 200 381 48.0 269.9 221.5 222.2 222 117.5 68 68 10 17.5 2.12 12.75 10.88 10.92 10.88 4.88 2.88 4 250 445 54.0 323.8 276.2 277.4 276 123.8 73 102 12 20.5 2.25 15.00 12.88 12.92 12.94 5.38 3.12 4.25 300 520 57.5 381.0 327.0 328.2 329 136.5 79 108 14 23 2.38 16.25 14.14 14.18 14.19 5.88 3.31 4.62 350 585 60.5 412.8 359.2 360.2 360 149.2 84 117 16 25.5 2.5 18.50 16.16 16.19 16.19 6 3.69 5 400 650 63.5 469.9 410.4 411.2 411 152.4 94 127 18 28 2.62 21 18.18 18.20 18.19 6.5 3.88 5.38 450 710 67.0 533.4 461.8 462.3 462 165.1 98 137 20 30.5 2.75 23 20.20 20.25 20.19 6.62 4 5.75 500 775 70.0 584.2 513.1 514.3 513 168.3 102 146 24 36 3 27.25 24.25 24.25 24.19 6.88 4.5 6.25 600 915 76.5 692.2 616.0 616.0 614 174.6 114 159

to be

specified

by

purchaser

for sizes nps 1/2 (dn 15) through nps 3 1/2 (dn 90) use class 600 (pn 100) flanges. 1

pounds

kilograms • 11 •






no. ofholesnps

dn

diaMeter of

holesj

diaMeter of

boltcircle

k

atbase

M

atchaMfer

n


rwelding

neckslip-on,

threadedlap

jointblind 4 8 1 7.88 5.75 4.50 .44 35 26 33 25 100 8 26 200.0 146.0 114.3 11 15.8 11.7 15 11.3 5 8 1 9.25 7.0 5.56 .44 43 31 44 29 125 8 26 234.9 177.8 141.3 11 19 14 20 13 6 12 1 10.62 8.12 6.63 .5 57 44 61 42 150 12 26 269.9 206.4 168.3 13 25.5 20 27.5 19 8 12 1.12 13.0 10.25 8.63 .5 89 67 100 64 200 12 29 330.2 260.3 219.1 13 40 30 45 29 10 16 1.25 15.25 12.62 10.75 .5 126 91 155 112 250 16 32 387.3 320.7 273.0 13 57 41 70 50 12 16 1.38 17.75 14.75 12.75 .5 177 129 226 152 300 16 35 450.8 374.7 323.8 13 80 58 102 68 14 20 1.38 20.25 16.75 14.00 .5 233 191 310 210 350 20 35 514.3 425.5 355.6 13 105 86 140 95 16 20 1.5 22.5 19.0 16.00 .5 294 253 398 280 400 20 39 571.5 482.6 406.4 13 132 114 179 126 18 24 1.5 24.75 21.0 18.00 .5 360 310 502 345 450 24 39 628.7 533.4 457.2 13 162 140 226 155 20 24 1.62 27 23.12 20.00 .5 445 378 621 420 500 24 42 685.8 587.4 508.0 13 200 170 279 189 24 24 1.88 32 27.62 24.00 .5 640 539 936 615 600 24 48 812.8 701.7 609.6 13 288 243 421 277

clASS 400 (Pn 68)flanges


ASMe/AnSi B16.5

• 12 •

1 Socket Welding Flanges, sizes nPS 3 1/2 (Dn 90) and

larger are not covered by ASMe/AnSi B16.5.2 Does not include .25" (6.4 mm) raised face.


flangeoutside

diaMetero

nps dn

flange2

thicknessMin.

t

raisedfacedia.

a

weldingneck &

1socketwelding

b

slip-on &1sock. weld.

socketMin.

c

lapjointMin.

d

threaded counter-

boreMin.

e

weldingneck

f

slip-on,threaded

1socket welding

g

lapjoint

h 1/2 3.75 .56 1.38 .88 .90 .93 2.06 .88 .88 15 95 14.5 34.9 22.2 22.9 23.5 52.4 22 22 3/4 4.62 .62 1.69 1.09 1.11 1.14 2.25 1.00 1.0 20 117 16.0 42.9 27.8 28.2 29.0 57.1 25 25 1 4.88 .69 2.0 1.36 1.38 1.41 2.44 1.06 1.06 25 124 17.5 50.8 34.5 34.9 36.0 61.9 27 27 1 1/4 5.25 .81 2.5 1.70 1.72 1.75 2.62 1.12 1.12 32 133 21.0 63.5 43.3 43.7 44.5 66.7 29 29 1 1/2 6.12 .88 2.88 1.95 1.97 1.99 2.75 1.25 1.25 40 156 22.5 73.0 49.6 50.0 50.5 69.8 32 32 2 6.5 1.0 3.62 2.44 2.46 2.50 2.88 1.44 1.44 50 165 25.5 92.1 61.9 62.5 63.5 73.0 37 37 2 1/2 7.5 1.12 4.12 2.94 2.97 3.00 3.12 1.62 1.62 65 191 29.0 104.8 74.6 75.4 76.0 79.4 41 41 3 8.25 1.25 5.0 3.57 3.60 3.63 3.25 1.81 1.81 80 210 32.0 127.0 90.7 91.4 92.0 82.5 46 46 3 1/2 9.0 1.38 5.5 4.07 4.10 4.13 3.38 1.94 1.94 90 229 35.0 139.7 103.4 104.1 105 85.7 49 49 4 10.75 1.5 6.19 4.57 4.60 4.63 4.0 2.12 2.12 100 273 38.5 157.2 116.1 116.8 118 101.6 54 54 5 13.0 1.75 7.31 5.66 5.69 5.69 4.5 2.38 2.38 125 330 44.5 185.7 143.7 144.5 145 114.3 60 60 6 14.0 1.88 8.5 6.72 6.75 6.75 4.62 2.62 2.62 150 356 48.0 215.9 170.7 171.4 171 117.3 67 67 8 16.5 2.19 10.62 8.72 8.75 8.75 5.25 3.0 3.0 200 419 55.5 269.9 221.5 22.22 222 133.3 76 76 10 20.0 2.5 12.75 10.88 10.92 10.88 6.0 3.38 4.38 250 510 63.5 323.8 276.2 277.4 276 152.4 86 111 12 22.0 2.62 15.0 12.88 12.92 12.94 6.12 3.62 4.62 300 560 66.5 381.0 327.0 328.2 329 155.6 92 117 14 23.75 2.75 16.25 14.14 14.18 14.19 6.5 3.69 5.0 350 605 70.0 412.8 359.2 360.2 360 165.1 94 127 16 27.0 3.0 18.5 16.16 16.19 16.19 7.0 4.19 5.5 400 685 76.5 469.9 410.4 411.2 411 177.5 106 140 18 29.25 3.25 21.0 18.18 18.20 18.19 7.25 4.62 6.0 450 745 83.0 533.4 461.8 462.3 462 184.1 117 152 20 32.0 3.5 23.0 20.20 20.25 20.19 7.5 5.0 6.4 500 815 89.0 584.2 513.1 514.3 513 190.5 127 165 24 37.0 4.0 27.25 24.25 24.25 24.19 8.0 5.5 7.25 600 940 102.0 692.2 615.9 615.9 614 203.2 140 184

to be

specified

by

purchaser

incHes

millimetres

pounds







no. ofholesnps

dn

dia. ofholes

j

dia. ofbolt

circlek

1depthof

socket

l

atbase

M

atchaMfer

n


rwelding

neck

slip-on,threaded &

socket welding1

lapjointblind

1/2 4 .62 2.62 .38 1.5 .84 .12 2 2 2 2 15 4 16 66.7 10 38.1 21.4 3 0.9 0.9 0.9 0.9 3/4 4 .75 3.25 .44 1.88 1.05 .12 4 3 3 3 20 4 20 82.5 11 47.6 26.6 3 1.8 1.4 1.4 1.4 1 4 .75 3.5 .50 2.12 1.32 .12 4 4 4 4 25 4 .20 88.9 13 54.0 33.5 3 1.8 1.8 1.8 1.8 1 1/4 4 .75 3.88 .56 2.5 1.66 .19 6 5 5 5 32 4 20 98.4 14 63.9 42.1 5 2.7 2.3 2.3 2.3 1 1/2 4 .88 4.5 .62 2.75 1.90 .25 8 7 8 7 40 4 23 114.3 16 69.8 48.3 6 3.6 3.2 3.6 3.2 2 8 .75 5.0 .69 3.31 2.38 .31 12 9 10 9 50 8 20 127.0 17 84.1 60.3 8 5.4 4.1 4.5 4.1 2 1/2 8 .88 5.88 .75 3.94 2.88 .31 18 13 15 12 65 8 23 149.2 19 100.0 73.0 8 8.2 5.9 6.8 5.4 3 8 .88 6.62 .81 4.62 3.50 .38 23 16 20 15 80 8 23 168.3 21 117.5 88.9 10 10.4 7.3 9.1 6.8 3 1/2 8 1.0 7.25 - 5.25 4.00 .38 26 21 29 20 90 8 26 184.1 - 133.3 101.6 10 11.8 9.5 13.2 9.1 4 8 1.0 8.5 - 6.0 4.50 .44 42 37 41 36 100 8 26 215.9 - 152.4 114.3 11 19.0 16.8 18.6 16.3 5 8 1.12 10.5 - 7.44 5.56 .44 68 63 68 61 125 8 29 266.7 - 188.9 141.3 11 31.0 28.6 30.8 27.7 6 12 1.12 11.5 - 8.75 6.63 .50 81 80 86 78 150 12 29 292.1 - 222.2 168.3 13 36.7 36.3 39.0 35.4 8 12 1.25 13.75 - 10.75 8.63 .50 120 115 140 110 200 12 32 349.2 - 273.0 219.1 13 54.4 52.2 63.5 49.9 10 16 1.38 17.0 - 13.5 10.75 .50 190 170 230 170 250 16 35 431.8 - 342.9 273.0 13 86.2 77.1 104 77.2 12 20 1.38 19.25 - 15.75 12.75 .50 225 200 295 200 300 20 35 488.9 - 400.0 323.8 13 102 90.7 134 90.7 14 20 1.50 20.75 - 17.0 14.0 .50 280 230 355 250 350 20 39 527.0 - 431.8 355.6 13 127 104 161 113 16 20 1.62 23.75 - 19.5 16.0 .50 390 330 495 365 400 20 42 603.2 - 495.2 406.4 13 177 150 225 166 18 20 1.75 25.75 - 21.5 18.0 .50 475 400 630 435 450 20 45 654.0 - 546.1 457.2 13 215 181 286 197 20 24 1.75 28.5 - 24.0 20.0 .50 590 510 810 570 500 24 45 723.9 - 609.6 508.0 13 268 231 367 259 24 24 2.0 33.0 - 28.25 24.0 .50 830 730 1250 810 600 24 51 838.2 - 717.5 609.6 13 376 331 567 367



1ASMe/AnSi B16.5

incHes


1 including socket welding flanges



flangeoutside

diaMetero

nps dn

flange2

thicknessMin.

t

raisedfacedia.

a

weldingneck

b

slip-on,Min.

c

lapjointMin.

d

threaded counter-

boreMin.

e

weldingneck

f

slip-on,threaded

g

lapjoint

h 3 9.50 1.50 5.00 3.57 3.60 3.63 4.00 2.12 2.12 80 241 38.5 127.0 90.7 91.4 92 101.6 54 54 4 11.50 1.75 6.19 4.57 4.60 4.63 4.50 2.75 2.75 100 292 44.5 157.2 q 116.1 116.8 118 114.3 70 70 5 13.75 2.0 7.31 5.66 5.69 5.69 5.00 3.12 3.12 125 349 51.0 185.7 143.7 144.5 145 127.0 79 79 6 15.00 2.19 8.50 6.72 6.75 6.75 5.50 3.38 3.38 150 381 56.0 215.9 170.7 171.4 171 139.7 86 86 8 18.50 2.5 10.62 8.72 8.75 8.75 67.38 4.00 4.50 200 470 63.5 269.9 221.5 222.2 222 161.9 102 114 10 21.50 2.75 12.75 10.88 10.92 10.88 7.25 4.25 5.00 250 545 70.0 323.8 276.2 277.4 276 184.2 108 127 12 24.00 3.12 15.00 12.88 12.92 12.94 7.88 4.62 5.62 300 610 79.5 381.0 327.0 328.2 329 200.0 117 143 14 25.25 3.38 16.25 14.14 14.18 14.19 8.38 5.12 6.12 350 640 86.0 412.8 359.2 360.2 360 212.7 130 156 16 27.75 3.5 18.50 16.16 16.19 16.19 8.50 5.25 6.50 400 705 89.0 469.9 410.4 411.2 411 215.9 133 165 18 31.00 4.0 21.00 18.18 18.20 18.19 9.00 6.00 7.50 450 785 102.0 533.4 461.8 462.3 462 228.8 152 191 20 33.75 4.25 23.00 20.20 20.25 20.19 9.75 6.25 8.25 500 855 108.0 584.2 513.1 514.3 513 247.6 159 210 24 41.00 5.5 27.25 24.25 24.25 24.19 11.50 8.00 10.50 600 1040 140.0 692.2 615.9 615.9 614 292.1 203 267

to be

specified

by

purchaser


pounds







no. ofholesnps

dn

diaMeter of

holesj

diaMeter of

boltcircle

k

atbase

M

atchaMfer

n


rwelding

neckslip-on,

threadedlap

jointblind 3 8 1.00 7.50 5.00 3.50 .38 .31 31 31 47 80 8 26 190.5 127.0 88.9 10 14.1 14.1 14.1 21.3 4 8 1.25 9.25 6.25 4.50 .44 51 53 54 51 100 8 32 234.9 158.7 114.3 11 23.1 24.0 24.5 23.1 5 8 1.38 11.00 7.50 5.56 .44 86 83 87 81 125 8 35 279.4 190.5 141.3 11 39.0 37.6 39.5 36.7 6 12 1.25 12.50 9.25 6.63 .50 110 110 115 105 150 12 32 317.5 234.9 168.3 13 49.9 49.9 52.2 47.6 8 12 1.50 15.50 11.75 8.63 .50 175 170 200 190 200 12 39 393.7 298.4 219.1 13 79.4 77.1 90.7 86.2 10 16 1.50 18.50 14.50 10.75 .50 260 245 290 275 250 16 39 469.9 368.3 273.0 13 118 111 132 125 12 20 1.50 21.00 16.50 12.75 .50 325 325 415 370 300 20 39 533.4 419.1 323.8 13 147 147 188 168 14 20 1.62 22.00 17.75 14.00 .50 400 400 520 415 350 20 42 558.8 450.8 355.6 13 181 181 236 188 16 20 1.75 24.25 20.00 16.00 .50 495 425 600 465 400 20 45 615.9 508.0 406.4 13 225 193 272 211 18 20 2.00 27.00 22.25 18.00 .50 680 600 850 650 450 20 51 685.8 565.1 457.2 13 308 272 386 295 20 20 2.12 29.50 24.50 20.00 .50 830 730 1075 810 500 20 54 749.3 622.3 508.0 13 376 331 488 367 24 20 2.62 35.50 29.5 24.00 .50 1500 1400 2025 1550 600 20 67 901.7 749.3 609.6 13 680 635 918 703



ASMe/AnSi B16.5


incHes


1 Socket Welding and Slip-on Flanges, size nPS 3 1/2 (Dn 80)

and larger are not covered by ASMe/AnSi B16.5.2 Does not include .25" (6.4 mm) raised face.


flangeoutside

diaMetero

nps dn

flange2

thicknessMin.

t

raisedfacedia.

a

weldingneck &

1socketwelding

b

1slip-on &1sock. weld.

socketMin.

c

lapjointMin.

d

threaded counter-

boreMin.

e

weldingneck

f

1slip-on,threaded,

1socket welding

g

lapjoint

h 1/2 4.75 .88 1.38 0.88 .90 .93 2.38 1.25 1.25 15 121 22.5 34.9 22.2 22.9 23.5 60.3 32 32 3/4 5.12 1.00 1.69 1.09 1.11 1.14 2.75 1.38 1.38 20 130 25.5 42.9 27.8 28.2 29.0 69.8 35 35 1 5.88 1.12 2.00 1.36 1.38 1.41 2.88 1.62 1.62 25 149 29.0 50.8 34.5 34.9 36.0 73.0 41 41 1 1/4 6.25 1.12 2.50 1.70 1.72 1.75 2.88 1.62 1.62 32 159 29.0 63.5 43.3 43.7 44.5 73.0 41 41 1 1/2 7.00 1.25 2.88 1.95 1.97 1.99 3.25 1.75 1.75 40 178 32.0 73.0 49.6 50.0 50.5 82.5 44 44 2 8.50 1.50 3.62 2.44 2.46 2.50 4.00 2.25 2.25 50 216 38.5 92.1 61.9 62.5 63.5 101.6 57 57 2 1/2 9.62 1.62 4.12 2.94 2.97 3.00 4.12 2.50 2.50 65 244 41.5 104.8 74.6 75.4 76.0 104.8 64 64 3 10.50 1.88 5.00 - 3.60 3.63 4.62 2.88 2.88 80 267 48.0 127.0 - 91.4 92.0 117.5 73 73 4 12.25 2.12 6.19 - 4.60 4.63 4.88 3.56 3.56 100 311 54.0 157.2 - 116.8 118 123.8 90 90 5 14.75 2.88 7.31 - 5.69 5.69 6.12 4.12 4.12 125 375 73.5 185.7 - 144.5 145 155.6 105 105 6 15.50 3.25 8.50 - 6.75 6.75 6.75 4.69 4.69 150 394 83.0 215.9 - 171.4 171 171.4 119 119 8 19.00 3.62 10.62 - 8.75 8.75 8.38 5.62 5.62 200 483 92.0 269.9 - 222.2 222 212.7 143 143 10 23.00 4.25 12.75 - 10.92 10.88 10.00 6.25 7.00 250 585 108.0 323.8 - 277.4 276 254.0 159 178 12 26.50 4.88 15.00 - 12.92 12.94 11.12 7.12 8.62 300 675 124.0 381.0 - 328.2 329 282.6 181 219 14 29.50 5.25 16.25 - 14.18 - 11.75 - 9.50 350 750 133.5 412.8 - 360.2 - 298.4 - 241 16 32.50 5.75 18.50 - 16.19 - 12.25 - 10.25 400 825 146.5 469.9 - 411.2 - 311.1 - 260 18 36.00 6.38 21.00 - 18.20 - 12.88 - 10.88 450 915 162.0 533.4 - 462.3 - 327.0 - 276 20 38.75 7.00 23.00 - 20.25 - 14.00 - 11.50 500 985 178.0 584.2 - 514.3 - 355.6 - 292 24 46.00 8.00 27.25 - 24.25 - 16.00 - 13.00 600 1170 203.5 692.2 - 615.9 - 406.4 - 330

to be

specified

by

purchaser

• 17 •






no. ofholesnps

dn

dia. ofholes

j

dia. ofbolt

circlek

1depthof

socket

l

atbase

M

atchaMfer

n


rwelding

neck

1slip-on,threaded &

1socket welding

lapjointblind

1/2 4 .88 3.25 .38 1.50 .84 .12 5 4 4 4 15 4 23 82.5 10 38.1 21.4 3 2.3 1.8 1.8 1.8 3/4 4 .88 3.50 .44 1.75 1.05 .12 6 5 6 5 20 4 23 88.9 11 44.4 26.6 3 2.7 2.3 2.7 2.3 1 4 1.00 4.00 .50 2.06 1.32 .12 9 8 8 8 25 4 26 101.6 13 52.4 33.5 3 4.1 3.6 3.6 3.6 1 1/4 4 1.00 4.38 .56 2.50 1.66 .19 10 9 9 9 32 4 26 111.1 14 63.5 42.1 5 4.5 4.1 4.1 4.1 1 1/2 4 1.12 4.88 .62 2.75 1.90 .25 13 12 13 12 40 4 29 123.8 16 69.8 48.3 6 5.9 5.4 5.9 5.4 2 8 1.00 6.50 .69 4.12 2.38 .31 25 25 25 25 50 8 26 165.1 17 104.8 60.3 8 11.3 11.3 11.3 11.3 2 1/2 8 1.12 7.50 .75 4.88 2.88 .31 36 36 35 35 65 8 29 190.5 19 123.8 73.0 8 16.3 16.3 15.9 16.0 3 8 1.25 8.00 - 5.25 3.50 .38 48 48 48 47 80 8 32 203.2 - 133.3 88.9 10 21.8 21.8 21.8 21.3 4 8 1.38 9.50 - 6.38 4.50 .44 73 73 73 75 100 8 35 241.3 - 161.9 114.3 11 33.1 33.1 33.1 34.0 5 8 1.62 11.50 - 7.75 5.56 .44 130 130 140 140 125 8 42 292.1 - 196.8 141.3 11 59.0 59.0 63.5 63.5 6 12 1.50 12.50 - 9.00 6.63 .50 165 165 160 170 150 12 39 317.5 - 228.6 168.3 13 75 75 72.6 77.1 8 12 1.75 15.50 - 11.50 8.63 .50 275 260 300 285 200 12 45 393.7 - 292.1 219.1 13 125 118 136 129 10 12 2.00 19.00 - 14.50 10.75 .50 455 435 510 485 250 12 51 482.6 - 368.3 273.0 13 206 197 231 220 12 16 2.12 22.50 - 17.75 12.75 .50 690 580 690 630 300 16 54 571.5 - 450.6 323.8 13 313 263 313 286 14 16 2.38 25.00 - 19.50 14.00 .50 940 - 975 890 350 16 61 635.0 - 495.3 355.6 13 426 - 442 404 16 16 2.62 27.75 - 21.75 16.00 .50 1250 - 1300 1150 400 16 67 704.8 - 552.4 406.4 13 567 - 590 522 18 16 2.88 30.50 - 23.50 18.00 .50 1625 - 1750 1475 450 16 74 774.7 - 569.9 457.2 13 737 - 795 669 20 16 3.12 32.75 - 25.25 20.00 .50 2050 - 2225 1775 500 16 80 831.8 - 641.3 508.0 13 930 - 1010 805 24 16 3.62 39.00 - 30.00 24.00 .50 3325 - 3625 2825 600 16 92 990.6 - 762.0 609.6 13 1510 - 1644 1326



ASMe/AnSi B16.5

pounds

kilograms

• 18 •

1 Dimensions do not include .25" (6.4 mm) raised face.2 class 2500 (Pn 420) Socket Welding and Slip-on Flanges not covered by AnSi B16.5


flangeoutside

diaMetero

nps dn

flange1

thicknesst

raisedfacedia.

a

weldingneck &socket2

weldingb

slip-on2 &sock. weld.2

socketMin.

c

lapjointMin.

d

threaded counter-

boreMin.

e

weldingneck

f

slip-on2

threadedsocket2

weldingg

lapjoint

h 1/2 5.25 1.19 1.38 0.88 .90 0.93 2.88 1.56 1.56 15 133 30.5 34.9 22.2 22.9 23.5 73.0 40 40 3/4 5.50 1.25 1.69 1.09 1.11 1.14 3.12 1.69 1.69 20 140 32.0 42.9 27.8 28.2 29.0 79.4 43 43 1 6.25 1.38 2.00 1.36 1.38 1.41 3.50 1.88 1.88 25 159 35.0 50.8 34.5 34.9 36.0 88.9 48 48 1 1/4 7.25 1.50 2.50 1.70 1.72 1.75 3.75 2.06 2.06 32 184 38.5 63.5 43.3 43.7 44.5 95.2 52 52 1 1/2 8.00 1.75 2.88 1.95 1.97 1.99 4.38 2.38 2.38 40 203 44.5 73.0 49.6 50.0 50.5 111.4 60 60 2 9.25 2.00 3.62 2.44 2.46 2.50 5.00 2.75 2.75 50 235 51.0 92.1 61.9 62.5 63.5 127.0 70 70 2 1/2 10.50 2.25 4.12 2.94 2.97 3.00 5.62 3.12 3.12 65 267 57.5 104.8 74.6 75.4 76 142.9 79 79 3 12.00 2.62 5.00 3.57 3.60 3.63 6.62 3.62 3.62 80 305 67.0 127.0 90.7 91.4 92 168.2 92 92 4 14.00 3.00 6.19 4.57 4.60 4.63 7.50 4.25 4.25 100 356 76.5 157.2 116.1 116.8 118 190.5 108 108 5 16.50 3.62 7.31 5.66 5.69 5.69 9.00 5.12 5.12 125 419 92.5 185.7 143.7 144.5 145 228.6 130 130 6 19.00 4.25 8.50 6.72 6.75 6.75 10.75 6.0 6.0 150 483 108.0 215.9 170.7 171.4 171 273.0 152 152 8 21.75 5.00 10.62 8.72 8.75 8.75 12.50 7.0 7.0 200 552 127.0 269.9 221.5 222.2 222 317.5 178 178 10 26.50 6.50 12.75 10.88 10.92 10.88 16.50 9.0 9.0 250 675 165.5 323.8 276.2 277.4 276 419.4 229 229 12 30.00 7.25 15.00 12.88 12.92 12.94 18.25 10.0 10.0 300 760 184.5 381.0 327.0 328.2 329 463.6 254 254

to be

specified

by

purchaser

reDUcinG FlAnGeS ASMe/AnSi B16.5 —hub dimensions shall be at least as large as those of the standard flanges of the size to which the reduction is being made, except that flanges reduced to a size smaller than those shown in the accompanying table may be used without hubs.

For threaded flanges, tapped smaller than the reduced size in the table, Blind Flanges may be used.

Flange thickness, outside diameter, drilling template and

facing dimensions, shall be the same as those of a standard flange of the nominal pipe size from which the reduction is being made.

reducing flanges are specified by giving firstly the size from which the reduction is made, followed by the reduced size.

example: nPS 6 x 4 class 300 reducing threaded flange. (Dn 150 x 100, Pn 50 reducing threaded flange.)

incHes

millimetres

• 19 •

* class 2500 (Pn 420) Socket Welding and Slip-on Flanges are not covered by ASMe/AnSi B16.5. Bevel of Welding neck, see page 48 Flange facing and gasket dimensions, see page 20. Bolting dimensions, see page 22.


no. ofholesnps

dn

dia. ofholes

j

dia. ofbolt

circlek

depthof

2socket

l

atbase

M

atchaMfer

n


rwelding

neck

slip-on,2

threaded &socket2 welding

lapjointblind

1/2 4 .88 3.50 .38 1.69 .84 .12 7 7 7 7 15 4 23 88.9 10 42.9 21.4 3 3.2 3.2 3.2 3.2 3/4 4 .88 3.75 .44 2.00 1.05 .12 8 8 8 8 20 4 23 95.2 11 50.8 26.6 3 3.6 3.6 3.6 3.6 1 4 1.00 4.25 .50 2.25 1.32 .12 12 11 11 11 25 4 26 107.9 13 57.1 33.5 3 5.4 5.0 5.0 5.0 1 1/4 4 1.12 5.12 .56 2.88 1.66 .19 17 16 17 16 32 4 29 130.2 14 73.0 42.1 5 7.7 7.3 7.7 7.3 1 1/2 4 1.25 5.75 .62 3.12 1.90 .25 25 22 23 22 40 4 32 146.0 16 79.4 48.3 6 11.3 10 10.4 10 2 8 1.12 6.75 .69 3.75 2.38 .31 42 38 39 37 50 8 29 171.4 17 95.2 60.3 8 19.0 17.2 17.7 16.8 2 1/2 8 1.25 7.75 .75 4.50 2.88 .31 52 55 56 53 65 8 32 196.8 19.0 114.3 73.0 8 23.6 24.9 25.4 24 3 8 1.38 9.00 - 5.25 3.50 .38 94 83 86 80 80 8 35 228.6 - 133.3 88.9 10 42.6 37.6 39 36.3 4 8 1.62 10.75 - 6.50 4.50 .44 145 125 135 120 100 8 42 273.0 - 165.1 114.3 11 65.8 56.7 61.2 54.4 5 8 1.88 12.75 - 8.00 5.56 .44 245 210 225 205 125 8 48 323.8 - 203.2 141.3 11 111 95.3 102 93.0 6 8 2.12 14.50 - 9.25 6.63 .50 380 325 345 315 150 8 54 368.3 - 234.9 168.3 13 172 147 156 143 8 12 2.12 17.25 - 12.00 8.63 .50 580 485 530 470 200 12 54 438.1 - 304.8 219.1 13 263 220 240 213 10 12 2.62 21.25 - 14.75 10.75 .50 1075 930 1025 900 250 12 67 539.7 - 374.8 273.0 13 488 422 465 408 12 12 2.88 24.38 - 17.38 12.75 .50 1525 1100 1300 1100 300 12 74 619.1 - 441.3 323.8 13 692 499 590 499

clASS 2500 (Pn 420)flanges*


1ASMe/AnSi B16.5

clASS 150 — 2500 (Pn 20 - 420)

nominal Pipe Size dn

Smallest Size of reducing outlet

requiring hub Flanges

1 25 1/2 1 1/4 32 1/2 1 1/2 40 1/2 2 50 1 2 1/2 65 1 1/4 3 80 1 1/4




3 1/2 90 1 1/2 4 100 1 1/2 5 125 1 1/2 6 150 2 1/2 8 200 3 1/2 10 250 3 1/2




12 300 3 1/2 14 350 3 1/2 16 400 4 18 450 4 20 500 4 24 600 4

reducing Flanges are generally supplied as Slip-on or Threaded; however reducing Welding neck flanges are available by special order.

pounds

kilograms

• 20 •

Gasket Facing is indicated on the facing drawings by “GF”.

Dimensions conform to ASMe/AnSi B16.5 and AnSi B16.21, where applicable.

* A tolerance of ±0.16" (0.44 mm) is allowed on the inside and outside diameters of all facings.

∆ For ring Joint dimensions see page 30.

*flange facing gasket diMensionsraised face,

lap jointo. dia.

a

flatface

o. dia.o cl. 150 cl. 300 cl. 400 cl. 600 cl. 900 cl. 1500 cl. 2500

nps dn

flat ring type gasket(extending to insides of bolts)

outside diaMeter

flat ring or full

face typesinside

diaMeter

fullfacetype

outside diaMeter

1/2 1.38 1.88 2.12 2.12 2.12 2.50 2.50 2.75 0.84 15 35 48 54 54 54 64 64 70 21 3/4 1.69 2.25 2.62 2.62 2.62 2.75 2.75 3.00 1.06 20 43 57 67 67 67 70 70 76 27 1 2 2.62 2.88 2.88 2.88 3.12 3.12 3.38 1.31 25 51 67 73 73 73 79 79 86 33 1 1/4 2.5 3.00 3.25 3.25 3.25 3.50 3.50 4.12 1.66 32 64 76 83 83 83 89 89 105 42 1 1/2 2.88 3.38 3.75 3.75 3.75 3.88 3.88 4.62 1.91 40 73 86 95 95 95 98 98 117 49 2 3.62 4.12 4.38 4.38 4.38 5.62 5.62 5.75 2.38 50 92 105 111 111 111 143 143 146 60 2 1/2 4.12 4.88 5.12 5.12 5.12 6.50 6.50 6.62 2.88 65 105 124 130 130 130 165 165 168 73 3 5 5.38 5.88 5.88 5.88 6.62 6.88 7.75 3.5 80 127 137 149 149 149 168 175 197 89 3 1/2 5.5 6.38 6.50 6.38 6.38 - - - 4 90 140 162 165 162 162 - - - 102 4 6.19 6.88 7.12 7.00 7.62 8.12 8.25 9.25 4.5 100 157 175 181 178 194 206 210 235 114 5 7.31 7.75 8.50 8.38 9.50 9.75 10.00 11.00 5.56 125 185 197 216 213 241 248 254 279 141 6 8.5 8.75 9.88 9.75 10.50 11.38 11.12 12.50 6.62 150 216 222 251 248 267 289 2.83 318 168 8 10.62 11.00 12.12 12.00 12.62 14.12 13.88 15.25 8.62 200 270 279 308 305 321 359 352 387 219 10 12.75 13.38 14.25 14.12 15.75 17.12 17.12 18.75 10.75 250 324 340 362 359 400 435 435 476 273 12 15 16.12 16.62 16.50 18.00 19.62 20.50 21.62 12.75 300 381 410 422 419 457 498 520 550 324 14 16.25 17.75 19.12 19.00 19.38 20.50 22.75 - 14 350 413 451 486 483 492 520 580 - 356 16 18.5 20.25 21.25 21.12 22.25 22.62 25.25 - 16 400 470 51 515 540 537 565 575 640 - 407 18 21 21.62 23.50 23.38 24.12 25.12 27.75 - 18 450 533 550 595 595 615 640 705 - 457 20 23 23.88 25.75 25.50 26.88 27.50 29.75 - 20 500 584 605 655 648 685 700 755 - 508 24 27.25 28.25 30.5 30.25 31.12 33.00 35.50 - 24 600 692 718 775 770 790 839 902 - 610

flangefacingandgasketdimensionsrAiSeD FAce, FlAT FAce, lAP JoinT

Sam

e as

fla

nge

outs

ide

dia

met

er,

see

pag

es 6

- 1

9.

Sam

e as

fla

nge

outs

ide

dia

met

er,

see

pag

es 6

- 1

9.

incHes

millimetres

• 21 •

incHes

millimetres

Gasket Facing is indicated on the facing drawings by “GF”.* A tolerance of ±0.16" (0.44 mm) is allowed on the inside and outside diameters of all facings. Dimensions conform to ASMe/AnSi B16.5 and AnSi B16.21, where

applicable.

flangefacing

andgasket

dimensionsMAle & FeMAle,

TonGUe & GrooVe

*flange facings diMensionsoutside diaMeter outside diaMeterinside diaMeter inside diaMeter

gasket diMensions

nps dn

large Male; large

tongue

a

sMallMale

b

sMalltongue

c

large feMale; large

groove

d

sMall feMale

e

sMall groove

f

large tongue;

sMall tongue

g

large Male & feMale. large

tongue & groove

sMall Male & feMale

sMall tongue & groove

large Male & feMale

large or sMall

tongue & groove

large groove;

sMall groove

h 1/2 1.38 0.72 1.38 1.44 0.78 1.44 1.00 0.94 1.38 0.72 1.38 0.84 1.00 15 35 18.3 35.0 36.5 19.9 36.5 25.4 23.8 35 18.3 35.0 21 25 3/4 1.69 .94 1.69 1.75 1.00 1.75 1.31 1.25 1.69 .94 1.69 1.06 1.31 20 43 23.8 42.9 44.5 25.4 44.4 33.3 31.8 43 23.8 42.9 27 33 1 2.00 1.19 1.88 2.06 1.25 1.94 1.5 1.44 2.00 1.19 1.88 1.31 1.50 25 51 30.2 47.6 52.4 31.8 49.2 38.1 36.5 51 30.2 47.6 33 38 1 1/4 2.50 1.5 2.25 2.56 1.56 2.31 1.88 1.81 2.50 1.50 2.25 1.66 1.88 32 64 38.1 57.2 65.1 39.7 58.7 47.6 46.0 64 38.1 57.2 42 48 1 1/2 2.88 1.75 2.50 2.94 1.81 2.56 2.12 2.06 2.88 1.75 2.50 1.91 2.12 40 73 44.4 63.5 74.6 46.0 65.1 54.0 52.4 73 44.4 63.5 49 54 2 3.62 2.25 3.25 3.69 2.31 3.31 2.88 2.81 3.62 2.25 3.25 2.38 2.88 50 92 57.2 82.6 93.7 58.7 84.1 73.0 71.4 92 57.2 82.6 60 73 2 1/2 4.12 2.69 3.75 4.19 2.75 3.81 3.38 3.31 4.12 2.69 3.75 2.88 3.38 65 105 68.3 95.2 106.4 69.9 96.8 85.7 84.1 105 68.3 95.2 73 86 3 5.00 3.31 4.62 5.06 3.38 4.69 4.25 4.19 5.00 3.31 4.62 3.5 4.25 80 127 84.1 117.5 128.6 85.7 119.1 108.0 106.4 127 84.1 117.5 89 108 3 1/2 5.50 3.81 5.12 5.56 3.88 5.19 4.75 4.69 5.50 3.81 5.12 4 4.75 90 140 96.8 130.2 141.3 98.4 131.8 120.6 119.1 140 96.8 130.2 102 121 4 6.19 4.31 5.69 6.25 4.38 5.75 5.19 5.12 6.19 4.31 5.69 4.5 5.19 100 157 109.5 144.5 158.8 111.1 146.0 131.8 130.2 157 109.5 144.5 114 132 5 7.31 5.38 6.81 7.38 5.44 6.88 6.31 6.25 7.31 5.38 6.81 5.56 6.31 125 185 136.5 173.0 187.3 138.1 174.6 160.3 158.8 185 136.5 173.0 141 161 6 8.50 6.38 8.00 8.56 6.44 8.06 7.5 7.44 8.50 6.38 8.00 6.62 7.50 150 216 161.9 203.2 217.5 163.5 204.8 190.5 188.9 216 161.9 203.2 168 191 8 10.62 8.38 10.00 10.69 8.44 10.06 9.38 9.31 10.62 8.38 10.00 8.62 9.38 200 270 212.7 254.0 271.5 214.3 255.6 238.1 236.5 270 212.7 254.0 219 238 10 12.75 10.5 12.00 12.81 10.56 12.06 11.25 11.19 12.75 10.50 12.00 10.75 11.25 250 324 266.7 304.8 325.4 268.3 306.4 285.8 284.2 324 266.7 304.8 273 286 12 15.0 12.5 14.25 15.06 12.56 14.31 13.5 13.44 15.00 12.50 14.25 12.75 13.50 300 381 317.5 362.0 382.6 319.1 363.5 342.9 341.3 381 317.5 362.0 324 343 14 16.25 13.75 15.50 16.31 13.81 15.56 14.75 14.69 16.25 13.75 15.50 14 14.75 350 413 349.2 393.7 414.3 350.8 395.3 374.6 373.1 413 349.2 393.7 356 375 16 18.5 15.75 17.62 18.56 15.81 17.69 16.75 16.69 18.50 15.75 17.62 16 16.75 400 470 400.0 447.7 471.5 401.6 449.3 425.4 423.9 470 400.0 447.7 407 426 18 21.0 17.75 20.12 21.06 17.81 20.19 19.25 19.19 21.00 17.75 20.12 18 19.25 450 533 450.9 511.2 535.0 452.4 512.8 489.0 487.4 533 450.9 511.2 457 489 20 23.0 19.75 22.0 23.06 19.81 22.06 21.0 20.94 23.00 19.75 22.0 20 21.00 500 584 501.7 558.8 585.8 503.2 560.4 533.4 531.8 584 501.7 558.8 510 535 24 27.25 23.75 26.25 27.41 23.81 26.31 25.25 25.19 27.25 23.75 26.25 24 25.25 600 692 603.3 666.8 693.7 604.8 668.3 641.4 639.8 692 603.3 666.8 610 640 ∆ For ring Joint dimensions see page 30.

• 22 •

* length of Stud Bolt does not include the height of the points.

Bolt sizes are in inches.

length of Male & Female and Tongue & Groove Stud Bolts are .25" (6.4 mm) less than those for the same size of .25"

(6.4 mm) raised Face Stud Bolts.

BolT AnDstuddimensions*conTinUeD on PAGe 23

class 150 (pn 20) flangeslength

class 400 (pn 64) flangesclass 300 (pn 50) flanges

nps dn

no. of bolts

dia. of bolts(inches)

.061.6

raised face

ringjoint

.061.6

raised face

stud boltsMachine

bolts

length

no. of bolts


.061.6

raised face

ringjoint

.061.6

raised face

stud boltsMachine

bolts

length ofstud bolts

no. of bolts


.256.4

raised face

Male & feMale

tongue & groove

ringjoint

1/2 4 1/2 2.50 - 2.00 4 1/2 2.75 3.00 2.25 4 1/2 3.25 3.00 3.00 15 4 1/2 65 - 50 4 1/2 70 75 55 4 1/2 85 75 75 3/4 4 1/2 2.50 - 2.25 4 5/8 3.00 3.50 2.50 4 5/8 3.50 3.25 3.50 20 4 1/2 65 - 55 4 5/8 75 90 6.5 4 5/8 90 85 90 1 4 1/2 2.75 3.25 2.25 4 5/8 3.25 3.75 2.75 4 5/8 3.75 3.50 3.75 25 4 1/2 70 85 55 4 5/8 85 95 70 4 5/8 95 90 95 1 1/4 4 1/2 2.75 3.25 2.50 4 5/8 3.25 3.75 2.75 4 5/8 4.00 3.75 4.00 32 4 1/2 70 85 65 4 5/8 85 95 70 4 5/8 100 95 100 1 1/2 4 1/2 3.00 3.50 2.50 4 3/4 3.75 4.25 3.00 4 3/4 4.25 4.00 4.25 40 4 1/2 75 90 65 4 3/4 95 110 75 4 3/4 110 100 110 2 4 5/8 3.25 3.75 2.75 8 5/8 3.50 4.25 3.00 8 5/8 4.25 4.00 4.50 50 4 5/8 85 95 70 8 5/8 90 110 75 8 5/8 110 100 115 2 1/2 4 5/8 3.50 4.00 3.00 8 3/4 4.00 4.75 3.50 8 3/4 4.75 4.50 5.00 65 4 5/8 90 100 75 8 3/4 100 120 90 8 3/4 120 115 130 3 4 5/8 3.75 4.25 3.25 8 3/4 4.25 5.00 3.75 8 3/4 5.00 4.75 5.25 80 4 5/8 95 110 85 8 3/4 110 125 95 8 3/4 130 120 135 3 1/2 8 5/8 3.75 4.25 3.25 8 3/4 4.50 5.25 3.75 8 7/8 5.50 5.25 5.75 90 8 5/8 95 110 85 8 3/4 115 135 95 8 7/8 140 135 145 4 8 5/8 3.75 4.25 3.25 8 3/4 4.50 5.25 4.00 8 7/8 5.50 5.25 5.75 100 8 5/8 95 110 85 8 3/4 115 135 100 8 7/8 140 135 145 5 8 3/4 4.00 4.50 3.25 8 3/4 4.75 5.50 4.25 8 7/8 5.75 5.50 6.00 125 8 3/4 100 115 85 8 3/4 120 140 110 8 7/8 145 140 155 6 8 3/4 4.00 4.50 3.50 12 3/4 5.00 5.75 4.25 12 7/8 6.00 5.75 6.25 150 8 3/4 100 115 90 12 3/4 130 145 110 12 7/8 155 145 160 8 8 3/4 4.25 4.75 3.75 12 7/8 5.50 6.25 4.75 12 1 6.75 6.50 7.00 200 8 3/4 110 120 95 12 7/8 140 160 120 12 1 175 165 180 10 12 7/8 4.75 5.25 4.00 16 1 6.25 7.00 5.50 16 1 1/8 7.50 7.25 7.75 250 12 7/8 120 135 100 16 1 160 180 140 16 1 1/8 190 185 195 12 12 7/8 4.75 5.25 4.25 16 1 1/8 6.75 7.50 6.00 16 1 1/4 8.00 7.75 8.25 300 12 7/8 120 135 110 16 1 1/8 175 190 155 16 1 1/4 205 195 210 14 12 1 5.25 4.75 4.50 20 1 1/8 7.00 7.75 6.25 20 1 1/4 8.25 8.00 8.50 350 12 1 135 145 115 20 1 1/8 180 195 160 20 1 1/4 210 205 215 16 16 1 5.50 6.00 4.75 20 1 1/4 7.50 8.25 6.50 20 1 3/8 8.75 8.50 9.00 400 16 1 140 155 120 20 1 1/4 190 210 165 20 1 3/8 225 215 230 18 16 1 1/8 6.00 6.50 5.00 24 1 1/4 7.75 8.50 6.75 24 1 3/8 9.00 8.75 9.25 450 16 1 1/8 150 165 125 24 1 1/4 195 215 175 24 1 3/8 230 225 235 20 20 1 1/8 6.25 6.75 5.50 24 1 1/4 8.25 9.00 7.25 24 1 1/2 9.75 9.50 10.00 500 20 1 1/8 160 175 140 24 1 1/4 210 230 185 24 1 1/2 250 240 255 24 20 1 1/4 7.00 7.50 6.00 24 1 1/2 9.25 10.25 8.00 24 1 3/4 10.75 10.50 11.25 600 20 1 1/4 180 190 155 24 1 1/2 235 260 205 24 1 3/4 275 265 285

incHes

millimetres

• 23 •

incHes

millimetres

* length of Stud Bolt does not include the height of the points

Bolt sizes are in inches.

length of Male & Female and Tongue & Groove Stud Bolts are .25" (6.4 mm) less than those for the same size of .25"

(6.4 mm) raised Face Stud Bolts.

BolT AnDstud

dimensionscontinued

class 600 (pn 100) flanges class 900 (pn 150) flanges

nps dn

no. of bolts


.256.4

raised face

ringjoint

length ofstud bolts

no. of bolts


.256.4

raised face

ringjoint

length ofstud bolts

class 1500 (pn 250) flanges

no. of bolts


.256.4

raised face

ringjoint

length ofstud bolts

class 2500 (pn 420) flanges

no. of bolts


.256.4

raised face

ringjoint

length ofstud bolts

1/2 4 1/2 3.25 3.00 4 3/4 4.25 4.25 4 3/4 4.25 4.25 4 3/4 5.25 5.25 15 4 1/2 85 75 4 3/4 110 110 4 3/4 110 110 4 3/4 135 135 3/4 4 5/8 3.50 3.50 4 3/4 4.50 4.50 4 3/4 4.50 450 4 3/4 5.25 5.25 20 4 5/8 90 90 4 3/4 115 115 4 3/4 115 115 4 3/4 135 135 1 4 5/8 3.75 3.75 4 7/8 5.00 5.00 4 7/8 5.00 5.00 4 7/8 5.75 5.75 25 4 5/8 95 95 4 7/8 125 125 4 7/8 125 125 4 7/8 145 145 1 1/4 4 5/8 4.00 4.00 4 7/8 5.00 5.00 4 7/8 5.00 5.00 4 1 6.25 6.50 32 4 5/8 100 100 4 7/8 125 125 4 7/8 125 125 4 1 160 165 1 1/2 4 3/4 4.25 4.25 4 1 5.50 5.50 4 1 5.50 5.50 4 1 1/8 7.00 7.25 40 4 3/4 110 110 4 1 140 140 4 1 140 140 4 1 1/8 180 185 2 8 5/8 4.25 4.50 8 7/8 5.75 5.75 8 7/8 5.75 5.75 8 1 7.25 7.50 50 8 5/8 110 115 8 7/8 145 145 8 7/8 145 145 8 1 185 190 2 1/2 8 3/4 4.75 5.00 8 1 6.25 6.25 8 1 6.25 6.25 8 1 1/8 8.00 8.25 65 8 3/4 120 125 8 1 160 160 8 1 160 160 8 1 1/8 205 210 3 8 3/4 5.00 5.25 8 7/8 5.75 6.00 8 1 1/8 7.00 7.00 8 1 1/4 9.00 9.25 80 8 3/4 130 135 8 7/8 145 155 8 1 1/8 180 180 8 1 1/4 230 235 3 1/2 8 7/8 5.50 5.75 - - - - - - - - - - - - 90 8 7/8 140 145 - - - - - - - - - - - - 4 8 7/8 5.75 6.00 8 1 1/8 6.75 7.00 8 1 1/4 7.75 7.75 8 1 1/2 10.25 10.75 100 8 7/8 145 155 8 1 1/8 175 180 8 1 1/4 195 195 8 1 1/2 260 275 5 8 1 6.50 6.75 8 1 1/4 7.50 7.75 8 1 1/2 9.75 9.75 8 1 3/4 12.00 12.75 125 8 1 165 175 8 1 1/4 190 195 8 1 1/2 250 250 8 1 3/4 305 325 6 12 1 6.75 7.00 12 1 1/8 7.75 7.75 12 1 3/8 10.25 10.50 8 2 13.75 14.50 150 12 1 175 180 12 1 1/8 195 195 12 1 3/8 260 265 8 2 350 370 8 12 1 1/8 7.75 7.75 12 1 3/8 8.75 9.00 12 1 5/8 11.50 12.00 12 2 15.25 16.00 200 12 1 1/8 195 195 12 1 3/8 225 230 12 1 5/8 295 305 12 2 390 405 10 16 1 1/4 8.50 8.75 16 1 3/8 9.25 9.50 12 1 7/8 13.25 13.75 12 2 1/2 19.50 20.50 250 16 1 1/4 215 225 16 1 3/8 235 240 12 1 7/8 335 350 12 2 1/2 495 520 12 20 1 1/4 8.75 9.00 20 1 3/8 10.00 10.25 16 2 14.75 15.50 12 2 3/4 21.50 22.50 300 20 1 1/4 225 230 20 1 3/8 255 260 16 2 375 395 12 2 3/4 545 570 14 20 1 3/8 9.25 9.50 20 1 1/2 10.75 11.25 16 2 1/4 16.00 17.00 350 20 1 3/8 235 240 20 1 1/2 275 285 16 2 1/4 405 430 16 20 1 1/2 10.00 10.25 20 1 5/8 11.25 11.75 16 2 1/2 17.50 18.50 400 20 1 1/2 255 260 20 1 5/8 285 300 16 2 1/2 445 470 18 20 1 5/8 10.75 11.00 20 1 7/8 12.75 13.50 16 2 3/4 19.50 20.50 450 20 1 5/8 275 280 20 1 7/8 325 345 16 2 3/4 495 520 20 24 1 5/8 11.50 11.75 20 2 13.50 14.25 16 3 21.50 22.50 500 24 1 5/8 295 300 20 2 345 360 16 3 545 570 24 24 1 7/8 13.00 13.25 20 2 1/2 17.25 18.00 16 3 1/2 24.50 25.75 600 24 1 7/8 330 335 20 2 1/2 440 455 16 3 1/2 620 655

• 24 •

#ASMe/AnSi B16.36 does not cover class 300 Threaded orifice Flanges in sizes above nPS 8 (Dn 200).

■ not included in ASMe/AnSi B16.36.

*Details of ring Joint facings are given on page 30.

For FUrTher DeTAilS, reFer To PAGe 4 “oTher TyPeS”.

∆ 0.06" (1.6 mm) raised Face is included in Flange Thickness T, and length through hub, F & G.

bore ∆ length tru hubwelding neck slip-on and threaded

flangeoutside

diaMetero

nps dn

raised face

t

∆ flangethickness

ringjoint

t

raisedface

diaMetera

weldingneck

b

slip-on

c

raisedface

f

ringjoint

f

raisedface

g

ringjoint

g

1 4.88 1.50 1.25 2.00 1.05 1.36 3.25 3.00 1.88 1.62 25 124 38.5 32.0 50.80 26.6 34.5 82.6 76.2 48 41.3 1 1/4 ■ 5.25 1.50 1.25 2.50 1.38 1.70 3.31 3.06 1.81 1.56 ■ 32 133 38.5 32.0 63.50 35.1 43.2 84.1 77.8 46 39.7 1 1/2 6.12 1.50 1.25 2.88 1.61 1.95 3.38 3.12 1.88 1.62 40 156 38.5 32.0 73.05 40.9 49.5 85.8 79.4 48 41.3 2 6.50 1.50 1.25 3.62 2.07 2.44 3.38 3.12 1.94 1.69 50 165 38.5 32.0 92.10 52.5 62.0 85.8 79.4 49 42.9 2 1/2 7.50 1.50 1.25 4.12 2.47 2.94 3.50 3.25 2.00 1.75 65 191 38.5 32.0 104.80 62.7 74.5 88.9 82.6 51 44.5 3 8.25 1.50 1.25 5.00 3.07 3.57 3.50 3.25 2.06 1.81 80 210 38.5 32.0 127.00 77.9 90.5 88.9 82.6 52 46.0 4 10.0 1.50 1.25 6.19 4.03 4.57 3.62 3.38 2.12 1.88 100 254 38.5 32.0 157.20 102.3 116.0 92.1 85.7 54 47.6 5 ■ 11.0 1.50 1.38 7.31 5.05 5.66 4.00 3.88 2.12 2.00 ■ 125 279 38.5 35.0 185.70 128.2 143.8 101.6 98.4 54 50.8 6 12.5 1.50 1.44 8.50 6.07 6.72 3.94 3.88 2.12 2.06 150 318 38.5 36.5 215.90 154.1 171.0 100.0 98.4 54 52.4 8 15.0 1.62 1.62 10.62 7.98 8.72 4.38 4.38 2.44 2.44 200 381 41.5 41.5 269.90 202.7 221.0 111.2 111.1 62 61.9 10 17.5 1.88 1.88 12.75 10.02 10.88 4.62 4.62 2.62 2.62 250 445 48.0 48.0 323.90 254.5 276.0 117.5 117.5 67 66.7 12 20.5 2.00 2.00 15.00 12.00 12.88 5.12 5.12 2.88 2.88 300 520 51.0 51.0 381.00 304.8 327.0 130.2 130.2 73 73.0 14 23.0 2.12 2.12 16.25 13.25 14.14 5.62 5.62 3.00 3.00 350 585 54.0 54.0 412.80 336.6 359.0 142.9 142.9 76 76.2 16 25.5 2.25 2.25 18.50 15.25 16.16 5.75 5.75 3.25 3.25 400 650 57.5 57.5 469.90 387.4 410.0 146.1 146.1 83 82.6 18 28.0 2.38 2.38 21.00 17.25 18.18 6.25 6.25 3.50 3.50 450 710 60.5 60.5 533.40 438.2 462.0 158.8 158.8 89 88.9 20 30.5 2.50 2.50 23.00 19.25 20.20 6.38 6.38 3.75 3.75 500 775 63.5 63.5 584.20 489.0 513.0 162.0 161.9 95 95.3 24 36.0 2.75 2.75 27.25 23.25 24.25 6.62 6.62 4.19 4.19 600 915 70.0 70.0 692.20 590.6 616.0 168.3 168.3 106 106.4

class 300 (pn 50)

incHes

millimetres

• 25 •

The tapped metering holes are drilled as follows:

1/2" for sizes nPS 4 (Dn 100) and over

3/8" for sizes nPS 3 (Dn 80)

1/4" for sizes nPS 1 1/2 (Dn 65) and under.

diaMeterof hub

drilling boltinglength

approxiMate weight

no. ofholes

nps dn

dia. ofholes

dia. ofbolt

circle

boltdia.

(inches)

atbase

M

atchaMfer

n

weldingneck

slip-on andthreaded

ringjoint

raisedface

raisedface

ringjoint

raisedface

ringjoint

clASS 300 (Pn 50)forged

orifice flangesASTM A-105

ASMe/AnSi B16.36

class 300 (pn 50) 1 4 0.69 3.50 5/8 4.00 4.75 2.12 1.32 18 20 15 17 25 4 18 89 5/8 102 121 54.0 33.5 8 9 7 7.5 1 1/4 ■ 4 0.69 3.88 5/8 4.00 4.75 2.50 1.66 21 23 17 20 ■ 32 4 17.5 99 5/8 102 121 63.5 42.2 9.5 10.5 7.5 9 1 1/2 4 0.81 4.50 3/4 4.25 5.00 2.75 1.90 28 30 24 28 40 4 18 114 3/4 108 127 70 48.5 12.5 13.5 11 13 2 8 0.69 5.00 5/8 4.00 4.75 3.31 2.38 33 36 27 31 50 8 18 127 5/8 102 120 84 60.5 15 16 12 14 2 1/2 8 0.81 5.88 3/4 4.25 5.00 3.94 2.88 43 46 36 42 65 8 21 149 3/4 108 127 100 73.0 19.5 21 16 19 3 8 0.81 6.62 3/4 4.25 5.00 4.62 3.50 48 52 42 48 80 8 21 168 3/4 108 127 117 89.0 21.5 23.5 19 22 4 8 0.81 7.88 3/4 4.25 5.00 5.75 4.50 68 73 60 66 100 8 21 200 3/4 108 127 146 114.0 30.5 33 27 30 5 ■ 8 0.88 9.25 3/4 4.25 5.50 7.00 5.56 78 89 69 80 ■ 125 8 23 235 3/4 108 140 178 141.2 35 40 31 36 6 12 0.88 10.62 3/4 4.25 5.50 8.12 6.63 100 115 94 110 150 12 23 270 3/4 108 140 206 168.0 45 52 42.5 50 8 12 1.00 13.00 7/8 4.50 6.00 10.25 8.63 155 180 135 160 200 12 26 330 7/8 115 153 260 219.0 70 81 61 73 10 16 1.12 15.25 1 5.50 6.50 12.62 10.75 220 255 200 230 250 16 29 387 1 140 165 321 273.0 99 115 90 104 12 16 1.25 17.75 1 1/8 5.50 7.00 14.75 12.75 330 380 280 325 300 16 32 451 1 1/8 140 178 375 324.0 149 171 125 147 14 20 1.25 20.25 1 1/8 6.00 7.00 16.75 14.00 425 485 395 450 350 20 32 514 1 1/8 153 178 425.5 356.0 191 218 178 204 16 20 1.38 22.50 1 1/4 6.50 8.00 19.00 16.00 590 660 465 535 400 20 35 572 1 1/4 165 204 483 406.0 266 297 209 243 18 24 1.38 24.75 1 1/4 6.50 8.00 21.00 18.00 750 830 610 690 450 24 35 629 1 1/4 165 204 535 457.0 338 374 275 313 20 24 1.38 27.00 1 1/4 7.00 8.00 23.12 20.00 910 1025 740 840 500 24 35 686 1 1/4 178 204 585 508.0 410 461 336 381 24 24 1.62 32.00 1 1/2 7.50 9.00 27.62 24.00 1350 1500 1125 1300 600 24 42 813 1 1/2 191 229 700 610.0 608 675 510 590

pounds

kilograms

• 26 •

∆ .25" (6.4 mm) raised Face s not included in Flange Thickness T, and length through hub F & G.

† Flanges size nPS 3 (Dn80) and smaller are identical to class 300 flanges, except for bolting steel specifications, compliance with which then permits their use for these higher class ratings.

■ not covered by ASMe/AnSi B16.36.

# Welding neck orifice Flanges in sizes nPS 14 through 24 (Dn 350 through 600), as covered by ASMe/AnSi B16.36, are available upon application.

* Details of ring Joint facings are given on page 30.

For FUrTher DeTAilS, reFer To PAGe 4 “oTher TyPeS”.


flangeoutside

diaMetero

nps dn

raised face

t

∆ flangethickness

ringjoint

t

raisedface

diaMetera

weldingneck

b

slip-on

c

raisedface

f

ringjoint

f

raisedface

g

ringjoint

g 4 10 1.38 1.38 6.19 4.57 3.5 3.5 2 2 100 254 35.0 35.0 157.2 116.1 88.9 88.9 50.8 50.8 5 ■ 11 1.50 1.50 7.31 5.66 4.0 4 2.12 2.12 ■ 125 279 38.5 38.1 185.7 143.8 101.6 101.6 54.0 54.0 6 12.5 1.62 1.62 8.50 6.72 4.06 4.06 2.25 2.25 150 318 41.5 41.5 215.9 170.7 103.2 103.2 57.2 57.2 8 15 1.88 1.88 10.62 8.72 4.62 4.62 2.69 2.69 200 381 48.0 48.0 269.9 221.5 117.5 117.4 68.3 68.3 10 17.5 2.12 2.12 12.75 10.88 4.88 4.88 2.88 2.88 250 445 54.0 54.0 323.9 276.4 123.5 123.8 73.0 73.0 12 20.5 2.25 2.25 15.00 12.88 5.38 5.38 3.12 3.12 300 520 57.5 57.5 381.0 327.2 136.5 136.5 79.4 79.4

†clASS 400 (Pn 68)


flangeoutside

diaMetero

nps dn

raised face

t

∆ flangethickness

ringjoint

t

raisedface

diaMetera

weldingneck

b

slip-on

c

raisedface

f

ringjoint

f

raisedface

g

ringjoint

g 4 10.75 1.50 1.50 6.19 4.57 4.00 4.00 2.12 2.12 100 273 38.5 38.1 157.2 116.1 101.6 101.6 54.0 54.0 5 ■ 13.00 1.75 1.75 7.31 5.66 4.50 4.50 2.38 2.38 ■ 125 330 44.5 44.5 185.7 143.8 114.3 114.3 60.5 60.5 6 14.00 1.88 1.88 8.50 6.72 4.62 4.62 2.62 2.62 150 356 48.0 48.0 215.9 170.7 117.5 117.5 66.7 66.7 8 16.50 2.19 2.19 10.62 8.72 5.25 5.25 3.00 3.00 200 419 56.0 56.0 269.9 221.5 133.4 133.4 76.2 76.2 10 20.00 2.50 2.50 12.75 10.88 6.00 6.00 3.38 3.38 250 510 63.5 63.5 323.9 276.4 152.4 152.4 85.7 85.7 12 22.00 2.62 2.62 15.00 12.88 6.12 6.12 3.62 3.62 300 560 67.0 67.0 381.0 327.2 155.6 155.6 92.1 92.1

†clASS 600 (Pn 100)

as

specified

by

purchaser

as

specified

by

purchaser

incHes

millimetres

• 27 •

The tapped metering holes are drilled as follows:

1/2" for sizes nPS 4 (Dn 100) and over.

diaMeterof hub


approxiMate weight

no. ofholes

nps dn

dia. ofholes

dia. ofbolt

circle

boltdia.

(inches)

atbase

M

atchaMfer

n

weldingneck

slip-on andscrewed

ringjoint

raisedface

raisedface

ringjoint

raisedface

ringjoint

clASS 400 (Pn 68)clASS 600 (Pn 100)

forged#orifice flanges

ASTM A-105ASMe/AnSi B16.36

ASMe/AnSi B16.36a

4 8 1 7.88 7/8 5.5 6.0 5.75 4.50 83 92 65 74 100 8 26 200.0 7/8 140 153 146.1 114.3 37 41.5 29 33.5 5 ■ 8 1 9.25 7/8 5.75 6.25 7.0 5.56 99 110 75 85 ■ 125 8 26 235.0 7/8 146 159 177.8 141.2 45 50 34 38 6 12 1 10.62 7/8 6.25 6.5 8.12 6.63 135 145 110 120 150 12 26 269.7 7/8 159 165 206.4 168.4 61 65 50 54 8 12 1.12 13.0 1 6.75 7.25 10.25 8.63 205 225 165 180 200 12 29 330.2 1 172 185 260.4 219.2 90 101 74 81 10 16 1.25 15.25 1 1/8 7.5 8.0 12.62 10.75 300 325 235 255 250 16 32 387.3 1 1/8 191 204 320.7 273.1 135 146 106 115 12 16 1.38 17.75 1 1/4 8.0 8.5 14.75 12.75 420 445 330 355 300 16 35 450.8 1 1/4 205 216 374.6 323.8 189 200 149 160

diaMeterof hub


approxiMate weight

no. ofholes

nps dn

dia. ofholes

dia. ofbolt

circle

boltdia.

(inches)

atbase

M

at pointof welding

n

weldingneck

slip-on andthreaded

ringjoint

raisedface

raisedface

ringjoint

raisedface

ringjoint

4 8 1.00 8.50 7/8 6.00 6.5 6.00 4.50 97 110 87 98 100 8 26 216 7/8 152 165 152 114 44 50 39 44 5 ■ 8 1.13 10.50 1 5.50 7.00 7.44 5.56 115 170 145 160 ■ 125 8 29 267 1 140 178 189 141 52 77 66 72 6 12 1.13 11.50 1 7.00 7.5 8.75 6.63 195 210 190 205 150 12 29 292 1 178 191 222 168 89 95 86 92 8 12 1.25 13.75 1 1/8 7.75 8.25 10.75 8.63 285 305 275 295 200 12 32 349 1 1/8 197 210 273 219 129 138 125 133 10 16 1.38 17.00 1 1/4 8.75 9.25 13.50 10.75 450 485 410 445 250 16 35 432 1 1/4 222 235 343 273 204 220 186 200 12 20 1.38 19.25 1 1/4 9.00 9.5 15.75 12.75 540 580 490 530 300 20 35 489 1 1/4 229 241 400 324 245 263 222 239

pounds

kilograms

• 28 •

# Sizes nPS 14 (Dn 350) and larger, on application.† class 2500 (Pn 400) Welding neck orifice Flanges, nPS 1 through 12 (Dn

25 through 300), as covered by ASMe/AnSi B16.36 are available upon application.

■ not covered by ASMe/AnSi B16.36.* Details of ring Joint facings are given on page 30.

For FUrTher DeTAilS, reFer To PAGe 4 “oTher TyPeS”.∆ 0.25" (6.4 mm) raised Face is not included in Flange Thickness T, and

length through hub F & G.

bore ∆ length thru hubwelding neck slip-on and threaded

flangeoutside

diaMetero

nps dn

raised face

t

∆ flangethickness

ringjoint

t

raisedface

diaMetera

weldingneck

b

slip-on

c

raisedface

f

ringjoint

f

raisedface

g

ringjoint

g 3 9.50 1.50 1.50 5.00 3.57 4.00 4.00 2.12 2.12 80 241 38.5 38.5 127.0 90.7 101.6 101.6 54.0 54.0 4 11.50 1.75 1.75 6.19 4.57 4.50 4.50 2.75 2.75 100 292 44.5 44.5 157.2 116.1 114.3 114.3 70.0 70.0 5 ■ 13.75 2.00 2.00 7.31 5.66 5.00 5.00 3.12 3.12 ■ 125 350 51.0 51.0 185.7 143.8 127.0 127 79.4 79.4 6 15.00 2.19 2.19 8.50 6.72 5.50 5.50 3.38 3.38 150 381 56.0 56.0 215.9 170.7 139.7 139.7 85.7 85.7 8 18.50 2.50 2.50 10.63 8.72 6.38 6.38 4.00 4.00 200 470 63.5 63.5 270.0 221.5 161.9 161.9 101.6 101.6 10 21.50 2.75 2.75 12.75 10.88 7.25 7.25 4.25 4.25 250 546 70.0 70.0 323.9 2 276.4 184.2 184.2 108.0 108.0 12 24.00 3.12 3.12 15.00 12.88 7.88 7.88 4.62 4.62 300 610 79.5 79.5 381.0 327.2 200.0 200.0 117.5 117.5

clASS 900 (Pn 150) for sizes 2 1/2 and smaller, use class 1500 (Pn 250)

†clASS 1500 (Pn 250)

as

specified

by

purchaser

bore length thru hubwelding neck slip-on and threaded

flangeoutside

diaMetero

nps dn

raised face

t

flangethickness

ringjoint

t

raisedface

diaMetera

weldingneck

b

slip-on

c

raisedface

f

ringjoint

f

raisedface

g

ringjoint

g 1 5.88 1.50 1.50 2.00 1.36 3.25 3.25 1.88 1.75 25 149 38.5 38.5 50.8 34.5 82.55 82.55 47.6 44.5 1 1/4 ■ 6.25 1.38 1.38 2.50 1.70 2.88 2.88 1.88 1.75 ■ 32 159 34.9 34.9 63.5 43.2 73.15 73.15 47.6 44.5 1 1/2 7.00 1.50 1.50 2.88 1.95 3.50 3.50 1.88 1.75 40 178 38.5 38.5 73.0 49.5 88.90 88.90 47.6 44.5 2 8.50 1.50 1.50 3.62 2.44 4.00 4.00 2.25 2.25 50 216 38.5 38.5 92.1 62.0 101.6 101.6 57.2 57.2 2 1/2 9.62 1.62 1.62 4.12 2.94 4.12 4.12 2.50 2.50 65 245 41.5 41.5 104.8 74.7 104.8 104.8 63.5 63.5 3 10.50 1.88 1.88 5.00 3.57 4.62 4.62 2.88 2.88 80 267 48.0 48.0 127.0 90.7 117.5 117.5 73.0 73.0 4 12.25 2.12 2.12 6.19 4.57 4.88 4.88 3.56 3.56 100 312 54.0 54.0 157.2 116.1 123.8 123.8 90.5 90.4 5 ■ 14.75 2.88 2.88 7.31 5.66 6.12 6.12 4.12 4.12 ■ 125 375 73.0 73.0 185.7 143.8 155.6 155.6 104.8 104.8 6 15.50 3.25 3.25 8.50 6.72 6.75 6.75 4.69 4.69 150 394 83.0 83.0 215.9 170.7 171.4 171.4 119.1 119.1 8 19.00 3.62 3.62 10.62 8.72 8.38 8.38 5.62 5.62 200 483 92.5 92.5 269.9 221.5 212.7 212.7 142.9 142.9 10 23.00 4.25 4.25 12.75 10.88 10.00 10.00 6.25 6.25 250 585 108.0 108.0 323.9 276.4 254.0 254.0 158.8 158.8 12 26.50 4.88 4.88 15.00 12.88 11.12 11.12 7.12 7.12 300 675 124.0 124.0 381.0 327.2 282.6 282.6 181.0 181.0

as

specified

by

purchaser

• 29 •

pounds

kilograms

The tapped metering holes are drilled as follows:1/2" for sizes nPS 4 (Dn 100) and over.3/8" for sizes nPS 3 (Dn 80).1/4" for sizes nPS 2 1/2 (Dn 65) and under.

diaMeterof hub

drilling bolting approxiMate weight

no. ofholes

nps dn

dia. ofholes

dia. ofbolt

circle

boltdia.

(inches)

atbase

M

at pointof welding

n

weldingneck

slip-on andthreaded

ringjoint

raisedface

raisedface

ringjoint

raisedface

ringjoint

clASS 900 (Pn 150)clASS 1500 (Pn 250)

forged†orifice flanges

ASTM A-105ASMe/AnSi B16.36

3 8 1.00 7.50 7/8 6.0 6.5 5.00 3.50 75 84 65 74 80 8 26 191 7/8 153 165 127 89.0 34 38 30 33 4 8 1.25 9.25 1 1/8 7.00 7.5 6.25 4.50 125 140 130 145 100 8 32 235 1 1/8 178 191 159 114.0 57 64 59 65 5 ■ 8 1.38 11.00 1 1/4 7.50 8.00 7.50 5.56 205 225 200 215 ■ 125 8 36 279 1 1/4 191 204 191 141.3 93 102 91 97 6 12 1.25 12.50 1 1/8 7.75 8.25 9.25 6.63 260 290 260 285 150 12 32 318 1 1/8 197 210 235 168.0 118 132 118 128 8 12 1.50 15.50 1 3/8 9.00 9.5 11.75 8.63 420 450 410 435 200 12 39 394 1 3/8 229 241 298 219.0 191 204 186 196 10 16 1.50 18.50 1 3/8 9.5 10.0 14.50 10.75 610 660 580 620 250 16 39 470 1 3/8 241 254 368 273.0 277 299 263 279 12 20 1.50 21.00 1 3/8 10.25 10.75 16.50 12.75 760 820 760 820 300 20 39 533 1 3/8 260 273 419 324.0 345 372 345 360

diaMeterof hub


approxiMate weight

no. ofholes

nps dn

dia. ofholes

dia. ofbolt

circle

boltdia.

(inches)

atbase

M

at pointof welding

n

weldingneck

slip-on andthreaded

ringjoint

raisedface

raisedface

ringjoint

raisedface

ringjoint

1 4 1.00 4.00 7/8 6.00 6.25 2.06 1.32 29 28 26 26 25 4 26 102 7/8 153 159 52 33.5 13 13 12 12 1 1/4 ■ 4 1.00 4.38 7/8 5.50 5.75 2.50 1.66 31 31 29 29 ■ 32 4 26 111 7/8 140 147 64 42.2 14 14 13 13 1 1/2 4 1.12 4.88 1 6.25 6.50 2.75 1.90 38 40 36 38 40 4 29 124 1 159 166 70 48.5 17 18 16 17 2 8 1.00 6.50 7/8 6.00 6.50 4.12 2.38 63 72 63 71

50 8 26 165 7/8 153 166 105 60.5 29 33 29 32 2 1/2 8 1.12 7.50 1 6.50 7.00 4.88 2.88 90 100 90 100 65 8 29 191 1 165 178 124 73.0 41 45 41 45 3 8 1.25 8.00 1 1/8 7.25 7.75 5.25 3.50 120 135 120 135 80 8 32 203 1 1/8 185 197 133 89.0 54 61 54 61 4 8 1.38 9.50 1 1/4 8.00 8.50 6.38 4.50 180 195 180 195 100 8 35 241 1 1/4 204 216 162 114.0 82 88 82 88 5 ■ 8 1.62 11.50 1 1/2 9.75 10.25 7.75 5.56 320 345 320 340 ■ 125 8 42 292 1 1/2 248 261 197 141.0 145 157 145 153 6 12 1.50 12.50 1 3/8 10.50 11.00 9.00 6.63 405 440 405 435 150 12 39 318 1 3/8 267 280 229 168.0 184 200 184 196 8 12 1.75 15.50 1 5/8 11.75 12.50 11.50 8.63 630 730 600 680 200 12 45 394 1 5/8 299 318 292 219.0 286 331 272 305 10 12 2.00 19.00 1 7/8 13.50 14.25 14.50 10.75 1100 1175 1050 1125 250 12 51 483 1 7/8 343 362 368 273.0 499 533 476 506 12 16 2.12 22.50 2 15.00 16.00 17.75 12.75 1675 1825 1475 1550 300 16 54 572 2 381 407 451 324.0 760 828 664 698For FUrTher DeTAilS, reFer To PAGe 4 “oTher TyPeS”.

incHes

millimetres

• 30 •

classpn

15020

30050

240064

600100

3900160

1500250

2500400

15020

300400,600

50,64,100900160

1500250

2500400

pitchdia.

p

depth

e4

width

f

bott.radius

rring

nuMber

noMinal pipe size groove diMensions diaMeter of raised face k

nPS 1/2 1/2 r11 1.344 0.219 0.281 .03 2 Dn 15 15 r11 34.14 5.56 7.14 .8 51.0 nPS 1/2 r12 1.562 0.250 0.344 .03 2.38 Dn 15 r12 39.67 6.35 8.74 .8 60.5 nPS 3/4 3/4 1/2 r13 1.688 0.250 0.344 .03 2.5 2.56 Dn 20 20 15 r13 42.88 6.35 8.74 .8 63.5 65.0 nPS 3/4 r14 1.750 0.250 0.344 .03 2.62 Dn 20 r14 44.45 6.35 8.74 .8 66.5 nPS 1 r15 1.875 0.250 0.344 .03 2.50 Dn 25 r15 47.62 6.35 8.74 .8 63.5 nPS 1 1 1 3/4 r16 2.000 0.250 0.344 .03 2.75 2.81 2.88 Dn 25 25 25 20 r16 50.80 6.35 8.74 .8 70.0 71.5 73.0 nPS 1 1/4 r17 2.250 0.250 0.344 .03 2.88 Dn 32 r17 57.15 6.35 8.74 .8 73.0 nPS 1 1/4 1 1/4 1 1/4 1 r18 2.375 0.250 0.344 .03 3.12 3.19 3.25 Dn 32 32 32 25 r18 60.32 6.35 8.74 .8 79.5 81.0 82.5 nPS 1 1/2 r19 2.562 0.250 0.344 .03 3.25 Dn 40 r19 65.07 6.35 8.74 .8 82.5 nPS 1 1/2 1/2 1 1/2 r20 2.688 0.250 0.344 .03 3.56 3.62 Dn 40 40 40 r20 68.28 6.35 8.74 .8 90.5 92.0 nPS 1 1/4 r21 2.844 0.312 0.469 .03 4 Dn 32 r21 72.24 7.92 11.91 .8 102 nPS 2 r22 3.250 0.250 0.344 .03 4 Dn 50 r22 82.55 6.35 8.74 .8 102 nPS 2 2 1 1/2 r23 3.250 0.312 0.469 .03 4.25 4.5 Dn 50 50 40 r23 82.55 7.92 11.91 .8 108 114 nPS 2 r24 3.750 0.312 0.469 .03 4.88 Dn 50 r24 95.25 7.92 11.91 .8 124 nPS 2 1/2 r25 4.000 0.250 0.344 .03 4.75 Dn 65 r25 101.60 6.35 8.74 .8 121 nPS 2 1/2 2 1/2 2 r26 4.000 0.312 0.469 .03 5 5.25 Dn 65 65 50 r26 101.60 7.92 11.91 .8 127 133 nPS 2 1/2 r27 4.250 0.312 0.469 .03 5.38 Dn 65 r27 107.95 7.92 11.91 .8 137 nPS 2 1/2 r28 4.375 0.375 0.531 .06 5.88 Dn 65 r28 111.12 9.52 13.49 1.5 149 nPS 3 r29 4.500 0.250 0.344 .03 5.25 Dn 80 r29 114.30 6.35 8.74 .8 133 nPS (1) (1) r30 4.625 0.312 0.469 .03 Dn (1) (1) r30 117.48 7.92 11.91 .8 nPS 3 (1) 3 (1) 3 r31 4.875 0.312 0.469 .03 5.75 6.12 Dn 80 80 80 r31 123.82 7.92 11.91 .8 146 156 nPS 3 r32 5.000 0.375 0.531 .06 6.62 Dn 80 r32 127.00 9.52 13.49 1.5 168

ringJoinTdimensionsASMe/AnSi B16.5

1 For nPS 3 (Dn 80) lap Joint Stub ends (ASMe/ASni B16.9) class 300 &

600 (Pn 50 & 100), ring number r30 is used instead of r31.2 For sizes nPS 1/2 - nPS 3 1/2 (Dn 15 - Dn 90), use same data as class

600 (Pn 100).3 For sizes nPS 1/2 - nPS 2 1/2 (Dn 15 - Dn 65) use same data as class

1500 (Pn 250).4 height of raised portion is equal to the depth of groove dimensions “e” but

is not subjected to the tolerance for “e”. Former full-face contour may be used.

tolerancese (depth) + 0.16 (+ 0.40 mm) - 0.00 (-0.00 mm)F (width) ± 0.008 (±0.20 mm)P (pitch) ± 0.005 (± 0.13 mm)r (radius) Max.23˚ (angle) ± 1/2˚

enlarged section of

groove

incHes

millimetres

• 31 •

classpn

15020

30050

240064

600100

3900160

1500250

2500400

15020

300400,600

50,64,100900160

1500250

2500400

pitchdia.

p

depth

e4

width

f

bott.radius

rring

nuMber


rinG JoinT DiMenSionS continued

For FooTnoTeS, reFer To PAGe 30 conTinUeD on PAGe 32

nPS 3 1/2 r33 5.188 0.250 0.344 .03 6.06 Dn 90 r33 131.78 6.35 8.74 .8 154 nPS 3 1/2 3 1/2 r34 5.188 0.312 0.469 .03 6.25 Dn 90 90 r34 131.78 7.92 11.91 .8 159 nPS 3 r35 5.375 0.312 0.469 .03 6.62 Dn 80 r35 136.52 7.92 11.91 .8 168 nPS 4 r36 5.875 0.250 0.344 .03 6.75 Dn 100 r36 149.22 6.35 8.74 .8 171 nPS 4 4 4 4 r37 5.875 0.312 0.469 .03 6.88 7.12 Dn 100 100 100 100 r37 149.22 7.92 11.91 .8 175 181 nPS 4 r38 6.188 0.438 0.656 .06 8 Dn 100 r38 157.18 11.13 16.66 1.5 203 nPS 4 r39 6.375 0.312 0.469 .03 7.62 Dn 100 r39 161.92 7.92 11.91 .8 194 nPS 5 r40 6.750 0.250 0.344 .03 7.62 Dn 125 r40 171.45 6.35 8.74 .8 194 nPS 5 5 5 5 r41 7.125 0.312 0.469 .03 8.25 8.5 Dn 125 125 125 125 r41 180.98 7.92 11.91 .8 210 216 nPS 5 r42 7.500 0.500 0.781 .06 9.5 Dn 125 r42 190.50 12.70 19.84 1.5 241 nPS 6 r43 7.625 0.250 0.344 .03 8.62 Dn 150 r43 193.68 6.35 8.74 .8 219 nPS 5 r44 7.625 0.312 0.469 .03 9 Dn 125 r44 193.68 7.92 11.91 .8 229 nPS 6 6 6 6 r45 8.312 0.312 0.469 .03 9.5 9.5 Dn 150 150 150 150 r45 211.12 7.92 11.91 .8 241 241 nPS 6 r46 8.312 0.375 0.531 .06 9.75 Dn 150 r46 211.12 9.52 13.49 1.5 248 nPS 6 r47 9.000 0.500 0.781 .06 11 Dn 150 r47 228.60 12.70 19.84 1.5 279 nPS 8 r48 9.750 0.250 0.344 .03 10.75 Dn 200 r48 247.65 6.35 8.74 .8 273 nPS 8 8 8 8 r49 10.625 0.312 0.469 .03 11.88 12.12 Dn 200 200 200 200 r49 269.88 7.92 11.91 .8 302 308 nPS 8 r50 10.625 0.438 0.656 .06 12.5 Dn 200 r50 269.88 11.13 16.66 1.5 318 nPS 8 r51 11.000 0.562 0.906 .06 13.38 Dn 200 r51 279.40 14.27 23.01 1.5 340 nPS 10 r52 12.000 0.250 0.344 .03 13 Dn 250 r52 304.80 6.35 8.74 .8 330 nPS 10 10 10 10 r53 12.750 0.312 0.469 .03 14 14.25 Dn 250 250 250 250 r53 323.85 7.92 11.91 .8 356 362 nPS 10 r54 12.750 0.438 0.656 .06 14.62 Dn 250 r54 323.85 11.13 16.66 1.5 371 nPS 10 r55 13.500 0.688 1.188 .09 16.75 Dn 250 r55 342.90 17.48 30.18 2.4 425

incHes

millimetres

• 32 •

classpn

15020

30050

240064

600100

3900160

1500250

2500400

15020

300,400,600

50,64,100900160

1500250

2500400

pitchdia.

p

depth

e4

width

f

bott.radius

rring

nuMber


rinG JoinTdimensionscontinued

For FooTnoTeS, reFer To PAGe 30

nPS 12 r56 15.000 0.250 0.344 .03 16 Dn 300 r56 381.00 6.35 8.74 .8 406 nPS 12 12 12 12 r57 15.000 0.312 0.469 .03 16.25 16.5 Dn 300 300 300 300 r57 381.00 7.92 11.91 .8 413 419 nPS 12 r58 15.000 0.562 0.906 .06 17.25 Dn 300 r58 381.00 14.27 23.01 1.5 438 nPS 14 r59 15.625 0.250 0.344 .03 16.75 Dn 350 r59 396.88 6.35 8.74 .8 425 nPS 12 r60 16.000 0.688 1.312 .09 19.5 Dn 300 r60 406.40 17.48 33.32 2.4 495 nPS 14 14 14 r61 16.500 0.312 0.469 .03 18 Dn 350 350 350 r61 419.10 7.92 11.91 .8 457 nPS 14 r62 16.500 0.438 0.656 .06 18.38 Dn 350 r62 419.10 11.13 16.66 1.5 467 nPS 14 r63 16.500 0.625 1.062 .09 19.25 Dn 350 r63 419.10 15.88 26.97 2.4 489 nPS 16 r64 17.875 0.250 0.344 .03 19 Dn 400 r64 454.02 6.35 8.74 .8 483 nPS 16 16 16 r65 18.500 0.312 0.469 .03 20 Dn 400 400 400 r65 469.90 7.92 11.91 .8 508 nPS 16 r66 18.500 0.438 0.656 .06 20.62 Dn 400 r66 469.90 11.13 16.66 1.5 524 nPS 16 r67 18.500 0.688 1.188 .09 21.5 Dn 400 r67 469.90 17.48 30.18 2.4 546 nPS 18 r68 20.375 0.250 0.344 .03 21.5 Dn 450 r68 517.52 6.35 8.74 8 546 nPS 18 18 18 r69 21.000 0.312 0.469 .03 22.62 Dn 450 450 450 r69 533.40 7.92 11.91 8 575 nPS 18 r70 21.000 0.500 0.781 .06 23.38 Dn 450 r70 533.40 12.70 19.84 1.5 594 nPS 18 r71 21.000 0.688 1.188 .09 24.12 Dn 450 r71 533.40 17.48 30.18 2.4 613 nPS 20 r72 22.000 0.250 0.344 .03 23.5 Dn 500 r72 558.80 6.35 8.74 .8 597 nPS 20 20 20 r73 23.000 0.375 0.531 .06 25 Dn 500 500 500 r73 584.20 9.52 13.49 1.5 635 nPS 20 r74 23.000 0.500 0.781 .06 25.5 Dn 500 r74 584.20 12.70 19.84 1.5 648 nPS 20 r75 23.000 0.688 1.312 .09 26.5 Dn 500 r75 584.20 17.48 33.32 2.4 673 nPS 24 r76 26.500 0.250 0.344 .03 28 Dn 600 r76 673.10 6.35 8.74 .8 711 nPS 24 24 24 r77 27.250 0.438 0.656 .06 29.5 Dn 600 600 600 r77 692.15 11.13 16.66 1.5 749 nPS 24 r78 27.250 0.625 1.062 .09 30.38 Dn 600 r78 692.15 15.88 26.97 2.4 772 nPS 24 r79 27.250 0.812 1.438 .09 31.25 Dn 600 r79 692.15 20.62 36.53 2.4 794

enlarged section of

groove

incHes

millimetres

• 33 •

incHes

millimetres

pounds

kilograms

length thru hub weights

class 150thru 600

class 900thru 2500

noMinalsizeand

boreb

pn20 thru 100

f

pn160 thru 400

f

class150

pn 20

class300

pn 50

class400

pn 64

class600

pn 100

class900

pn 160

class1500

pn 250

class2500

pn 400

hubdiaMeterclass 150

pn 20*M

longwelding

necks

1.00 9 9 2.00 8 10 11 11 15 15 20 25.4 229 229 50.8 3.6 4.5 5 5 7 7 9 1.25 9 9 2.38 10 14 14 14 18 18 30 31.8 229 229 60.3 4.5 6.5 6.5 6.5 8 8 13.5 1.50 9 9 2.62 12 17 17 17 23 23 38 38.1 229 229 66.7 5.5 7.7 7.7 7.7 10.5 10.5 17 2.00 9 9 3.25 17 19 21 21 44 44 55 50.8 229 229 82.6 7.7 9 9.5 9.5 20 20 25 2.50 9 12 3.75 22 28 29 29 72 72 85 63.5 229 305 95.3 10 13 13 13 32.5 32.5 38.5 3.00 9 12 4.25 26 36 38 38 65 84 125 76.2 229 305 108.0 12 16.5 17.5 17.5 29.5 38 57 3.50 9 - 4.88 32 45 48 48 - - - 88.9 229 - 123.8 14.5 20.5 21.5 22 - - - 4.00 12 12 5.50 47 54 67 80 98 118 185 101.6 305 305 139.7 21.5 24.5 30 36.5 44 53 84 5.00 12 12 6.50 58 86 90 128 143 195 300 127.0 305 305 165.1 26.5 39 41 58 65 88 135 6.00 12 12 7.75 77 108 115 158 199 235 450 152.4 305 305 196.9 35 49 52 72 90 106 203 8.00 12 12 9.75 103 150 160 215 310 366 600 203.2 305 305 247.7 47 68 72 98 140 165 270 10.00 12 12 12.00 144 218 230 343 356 594 1045 254.0 305 305 304.8 66 99 104 156 161 268 471 12.00 12 12 14.38 207 289 301 409 541 872 1420 304.8 305 305 365.1 94 131 136 186 244 393 639 14.00 12 12 16.00 212 342 357 432 568 1030 - 355.6 305 305 406.4 96 155 161 196 256 464 - 16.00 12 12 18.00 250 426 443 564 670 1335 - 406.4 305 305 457.2 114 193 199 256 302 601 - 18.00 12 12 20.00 274 493 513 654 949 1750 - 457.2 305 305 508.0 125 224 231 297 427 788 - 20.00 12 12 22.00 314 575 602 840 1040 2130 - 508.0 305 305 558.8 143 261 271 381 468 959 - 24.00 12 12 26.25 426 823 856 1100 1775 3180 - 609.6 305 305 666.8 194 374 385 499 799 1431 -

specifications: long Welding necks conform to ASTM specification A-105. except as shown above, long Welding necks conform dimensionally to ASMe/AnSi Standard B16.5.

*Dimension “M” is given here for class 150 (Pn 20) long Welding necks only. For class 300 (Pn 50) and higher pressure ratings, outside diameter of the neck is the same as dimension “M” of AnSi flanges of comparable pressure rating (see pages 8 to 18).Facing and Finish: see page 4.Gasket dimensions: see page 20.Bolting dimensions: see page 22.

• 34 •

pounds

kilograms

incHes

millimetres

1 class 125lW Slip-on Flanges in pipe sizes nPS 6 to 96 (Dn 150 to 2400) are identical with

AWWA class D Flanges, as shown on page 40, and have the same diameter and drilling as class 125 cast iron Flanges, AnSi B16.1

These flanges are designed for use with full face gaskets, but ring gaskets extending to the inside edge of the bolt holes may also be used.

2 Blind Flanges are available on request.

3 can also be furnished in A181 class 70 and A105 or any other material that can be forged or

rolled.4 When specifying bore it is recommended that this dimension be .19" (4.88 mm) larger than the nominal o.D. of the pipe.

noTe: At the time of printing this catalogue the metric Pressure number (Pn) equivalent of the class 125 pressure rating of these lW flanges had not been established, neither had the metric nominal Diameter (Dn) conversions for various nPS sizes.

drilling

flangeoutside

diaMetero

flangethickness

t

4borediaMeter

c

lengththruhub

g

diaMeterof hubat base

Mnps

dn

no.of

holes

diaMeterof

holesj

dia. ofbolt

circlek

bolt diaMeter

approx.weight

26 34.25 1.00 1.75 28.50 24 1.38 1 1/4 31.75 123 650 870 25.4 44.5 723.9 24 35 1 1/4 806.5 56 28 36.5 1.00 1.75 30.50 28 1.38 1 1/4 34.00 141 700 927 25.4 44.5 774.7 28 35 1 1/4 863.6 64 30 38.75 1.00 1.75 32.50 28 1.38 1 1/4 36.00 151 750 985 25.4 44.5 825.5 28 35 1 1/4 914.4 68.5 32 41.75 1.12 1.75 34.75 28 1.62 1 1/2 38.50 207 800 1061 28.6 44.5 882.7 28 41 1 1/2 977.9 94 34 43.75 1.12 1.75 36.75 32 1.62 1 1/2 40.50 218 1111 28.6 44.5 933.5 32 41 1 1/2 1028.7 99 36 46 1.12 1.75 38.75 32 1.62 1 1/2 42.75 233 900 1169 28.6 44.5 984.3 32 41 1 1/2 1085.9 106 38 48.75 1.12 1.75 40.75 32 1.62 1 1/2 45.25 261 1238 28.6 44.5 1035.1 32 41 1 1/2 1149.4 118 40 50.75 1.12 1.75 43.00 36 1.62 1 1/2 47.25 283 1000 1289 28.6 44.5 1092 36 41 1 1/2 1200.2 128 42 53 1.25 1.75 45.00 36 1.62 1 1/2 49.50 332 1100 1346 31.8 44.5 1143 36 41 1 1/2 1257.3 151 44 55.25 1.25 2.25 47.00 40 1.62 1 1/2 51.75 353 1404 31.8 57.2 1194 40 41 1 1/2 1314.5 160 46 57.25 1.25 2.25 49.00 40 1.62 1 1/2 53.75 364 1454 3.8 57.2 1245 40 41 1 1/2 1365.3 165 48 59.5 1.38 2.50 51.00 44 1.62 1 1/2 56.00 425 1200 1511 34.9 63.5 1295 44 41 1 1/2 1422.4 193 50 61.75 1.38 2.50 53.00 44 1.88 1 3/4 58.25 455 1569 34.9 63.5 1346 44 48 1 3/4 1479.6 206 52 64 1.38 2.50 55.00 44 1.88 1 3/4 60.50 470 1300 1626 34.9 63.5 1397 44 48 1 3/4 1536.7 213 54 66.25 1.38 2.50 57.00 44 1.88 1 3/4 62.75 510 1400 1683 34.9 63.5 1448 44 48 1 3/4 1593.9 231 60 73 1.50 2.75 63.00 52 1.88 1 3/4 69.25 645 1500 1854 38.1 69.9 1600 52 48 1 3/4 1759.0 293 66 80 1.50 2.75 69.00 52 1.88 1 3/4 76.00 760 2032 38.1 69.9 1753 52 48 1 3/4 1930.4 345 72 86.5 1.50 2.75 75.00 60 1.88 1 3/4 82.50 845 1800 2197 38.1 69.9 1905 60 48 1 3/4 2095.5 383 84 99.75 1.75 3.00 87.50 64 2.12 2 95.50 1015 2534 44.5 76.2 2223 64 54 2 2425.7 460 96 113.25 2.00 3.25 100.00 68 2.38 2 1/4 108.50 1660 2400 2877 50.8 82.6 2540 68 61 2 1/4 2755.9 753

as

specified

by

purchaser

large diameterforged steel flanges

clASS 125 lW1

SliP-on FlAnGeS2

3ASTM A181 clASS 60

• 35 •

incHes

millimetres

pounds

kilograms

diaMeterof hubbore

length thruhub

approxiMate weight

nps dn

flangeoutside

dia.o

weldingneck

bslip-on

c

weldingneck

fslip-on

g

weldingneck slip-on

atbase

M

at point of

weldingn

no.of

holes

dia.of

holesj

dia. ofbolt

circlek

dia.of

5raisedface

r

flangethickness

t

drilling


1clASS 125american standard

welding neck &2SliP-on FlAnGeS

3ASTM A181 clASS 60

26 34.25 2.00 29.25 26.25 5.00 3.38 28.50 26 24 1.38 31.75 262 233 650 870 50.8 743 666.8 127.0 85.7 723.9 660 24 35 806.5 118 105 28 36.5 2.06 31.25 28.25 5.06 3.44 30.75 28 28 1.38 34.00 291 275 700 927 52.4 794 717.6 128.6 87.3 781.1 711 28 35 863.6 131 124 30 38.75 2.12 33.75 30.25 5.12 3.5 32.75 30 28 1.38 36.00 341 300 750 985 54.0 857 768.4 130.2 88.9 831.9 762 28 35 914.4 154 135 32 41.75 2.25 35.75 32.25 5.25 3.62 35.00 32 28 1.62 38.50 412 370 800 1061 57.2 908 819.2 133.4 92.1 889.0 813 28 41 977.9 186 167 34 43.75 2.31 37.75 34.25 5.31 3.69 37 34 32 1.62 40.50 439 410 - 1111 58.7 959 870.0 134.9 93.7 939.8 864 32 41 1028.7 198 185 36 46 2.38 40.25 36.25 5.38 3.75 39.25 36 32 1.62 42.75 495 460 900 1169 60.3 1022 920.8 136.5 95.3 997.0 914 32 41 1085.9 223 207 38 48.75 2.38 42.25 38.25 5.38 3.75 41.75 38 32 1.62 45.25 573 525 - 1238 60.3 1073 971.6 136.5 95.3 1060.5 965 32 41 1149.4 258 236 40 50.75 2.50 44.25 40.25 5.50 3.88 43.75 40 36 1.62 47.25 619 575 1000 1289 63.5 1124 1022.4 139.7 98.4 1111.3 1016 36 41 1200.2 279 259 42 53 2.62 47 42.25 5.62 4.00 46.00 42 36 1.62 49.50 715 660 1100 1346 66.7 1194 1073.2 142.9 101.6 1168.4 1067 36 41 1257.3 322 297 44 55.25 2.62 49 44.25 5.62 4.00 48.00 44 40 1.62 51.75 755 695 - 1404 66.7 1245 1124.0 142.9 101.6 1219.2 1118 40 41 1314.5 340 313 46 57.25 2.69 51 46.25 5.69 4.06 50.00 46 40 1.62 53.75 805 730 - 1454 68.3 1295 1174.8 144.5 103.2 1270.0 1168 40 41 1365.3 362 329 48 59.5 2.75 53.5 48.25 5.75 4.12 52.25 48 44 1.62 56.00 880 810 1200 1511 69.9 1359 1225.6 146.1 104.8 1327.2 1219 44 41 1422.4 396 365 50 61.75 2.75 55.5 50.25 5.75 4.12 54.25 50 44 1.88 58.25 915 840 - 1569 69.9 1410 1276.4 146.1 104.8 1378.0 1270 44 48 1479.6 412 378 52 64.0 2.88 57.5 52.25 5.88 4.25 56.50 52 44 1.88 60.50 1020 925 1300 1626 73.0 1461 1327.2 149.2 108.0 1435.1 1321 44 48 1536.7 459 416 54 66.25 3.00 59.75 54.25 6.00 4.38 58.75 54 44 1.88 62.75 1110 1040 1400 1683 76.2 1518 1378.0 152.4 111.1 1492.3 1372 44 48 1593.9 500 468 60 73.0 3.12 66 60.25 6.12 4.50 65.25 60 52 1.88 69.25 1360 1275 1500 1854 79.4 1676 1530.4 155.6 114.3 1657.4 1524 52 48 1759.0 612 574 66 80.0 3.38 73 66.25 6.38 4.88 71.50 66 52 1.88 76.00 1770 1625 - 2032 85.7 1855 1682.8 161.9 123.8 1816.1 1676 52 48 1930.4 797 731 72 86.5 3.50 79.5 72.25 6.50 5.00 78.50 72 60 1.88 82.50 2125 1950 1800 2197 88.9 2019 1835.2 165.1 127.0 1993.9 1829 60 48 2095.5 956 878 84 99.75 3.88 92.5 84.25 6.88 5.38 90.50 84 64 2.12 95.50 2825 2620 - 2534 98.4 2350 2140.0 174.6 136.5 2298.7 2134 64 54 2425.7 1271 1179 96 113.25 4.25 105.5 96.25 7.25 5.75 102.75 96 68 2.38 108.50 3830 3295 2400 2877 108.0 2680 2444.8 184.2 146.1 2609.9 2438 68 61 2755.9 1724 1483

4as

specified

by

purchaser

1 These flanges have the same pressure ratings, dimensions and drillings as class 125 cast

iron Flanges, ASMe/AnSi B16.1. class 125 American Standard slip-on flanges are also the same as AWWA class e flanges.

2 Blind Flanges are available on request.

3 can also be furnished in A181 class 70 and A105 or any other material that can be forged

or rolled.

4 When ordering Welding necks, specify thickness and o.D. of pipe or vessel

to which the flange is to be welded.5 All sizes are regularly furnished with flat face. A .06" (1.6 mm) raised face

can be furnished on request.

noTe: At the time of printing this catalogue the metric Pressure number (Pn) equivalent of the class 125 pressure rating of these flanges had not been established, neither had the metric nominal Diameter (Dn) conversions for various nPS sizes.

• 36 •

pounds

kilograms

incHes

millimetres

1 These flanges have the same pressure ratings, dimensions and

drillings as class 250 cast iron Flanges ASMe/AnSi B16.1.2 Blind Flanges are available upon application.

3 can also be furnished in A181 class 70, and A-105 or any

other material that can be forged or rolled.

noTe: At the time of printing this catalogue the metric Pressure number (Pn) equivalent of the class 125 pressure rating of these lW flanges had not been established, neither had the metric nominal Diameter (Dn) conversions forvarious nPS sizes.

drillingflangeoutside

diaMetero

flangethickness

tbore

b

lengththruhub

g

dia.of hubat base

M

dia. of hub at

point of welding

n

dia. of raised

facea

nps dn

no. ofholes

diaMeterof

holesj

dia. ofbolt

circlek

dia. ofbolts

approx.weight

large diameter forged steel flanges1clASS 250american standardwelding neck &2SliP-on FlAnGeS3ASTM A181-clASS 60

welding neck

slip-on

26 38.25 2.81 5.81 30.50 26 32.44 28 1.88 1 3/4 34.50 535 650 972 71.4 147.6 774.7 660 823.9 28 48 1 3/4 876.3 241 28 40.75 2.94 5.94 33.00 28 34.94 28 1.88 1 3/4 37.00 640 700 10.35 74.6 150.9 838.2 711 887.5 28 48 1 3/4 939.8 289 30 43.0 3.00 6.00 35.25 30 37.19 28 1.88 1 3/4 39.25 695 750 1092 76.2 152.4 895.4 762 944.6 28 48 1 3/4 997.0 313 32 45.25 3.12 6.12 37.50 32 39.44 28 1.88 1 3/4 41.50 780 800 1150 79.4 155.6 952.5 813 1001.8 28 48 1 3/4 1054.1 351 34 47.5 3.25 6.25 39.50 34 41.44 28 1.88 1 3/4 43.50 885 1207 82.6 158.8 1003.3 864 1052.5 28 48 1 3/4 1104.9 398 36 50 3.38 6.38 41.50 36 43.69 32 2.12 2 46.00 965 900 1270 85.7 161.9 1054.1 914 1109.7 32 54 2 1168.4 434 38 52.25 3.44 6.44 43.50 38 45.69 32 2.12 2 48.00 1040 1327 87.3 163.5 1104.9 965 1160.5 32 54 2 1219.2 468 40 54.5 3.56 6.56 45.75 40 47.94 36 2.12 2 50.25 1150 1000 1384 90.5 166.7 1162.1 1016 1217.6 36 54 2 1276.4 518 42 57 3.69 6.94 47.75 42 50.44 36 2.12 2 52.75 1340 1100 1448 93.7 176.2 1212.9 1067 1281.1 36 54 2 1339.9 603 44 59.25 3.75 7.00 49.75 44 52.69 36 2.12 2 55.00 1420 1505 95.3 177.8 1263.7 1118 1338.3 36 54 2 1397.0 639 46 61.5 3.88 7.12 51.75 46 54.94 40 2.12 2 57.25 1525 1562 98.4 181.0 1314.5 1169 1395.4 40 54 2 1545.2 686 48 65 4.00 7.25 54.00 48 58.44 40 2.12 2 60.75 1850 1200 1651 101.6 184.2 1371.6 1219 1484.3 40 54 2 1543.1 833

26 38.25 2.81 26.25 4.75 30.50 - 32.44 28 1.88 1 3/4 34.50 530 650 972 71.4 666.8 120.7 774.7 - 823.9 28 48 1 3/4 876.3 239 28 40.75 2.94 28.25 5.00 33.00 - 34.94 28 1.88 1 3/4 37.00 630 700 1035 74.6 717.6 127.0 838.2 - 887.5 28 48 1 3/4 939.8 284 30 43 3.00 30.25 5.00 35.25 - 37.19 28 1.88 1 3/4 39.25 700 750 1093 76.2 768.4 127.0 895.4 - 944.6 28 48 1 3/4 997.0 315 32 45.25 3.12 32.25 5.12 37.50 - 39.44 28 1.88 1 3/4 41.50 800 800 1150 79.4 819.2 130.2 952.5 - 1001.8 28 48 1 3/4 1054.1 360 34 47.5 3.25 34.25 5.25 39.50 - 41.44 28 1.88 1 3/4 43.50 895 1207 82.6 870.0 133.4 1003.3 - 1052.5 28 48 1 3/4 1104.9 403 36 50 3.38 36.25 5.38 41.50 - 43.69 32 2.12 2 46.00 975 900 1270 85.7 920.8 136.5 1054.1 - 1109.7 32 54 2 1168.4 439 38 52.25 3.44 38.25 5.50 43.50 - 45.69 32 2.12 2 48.00 1070 1328 87.3 971.6 139.7 1104.9 - 1160.5 32 54 2 1219.2 482 40 54.5 3.56 40.25 5.50 45.75 - 47.94 36 2.12 2 50.25 1180 1000 1385 90.5 1022.4 139.7 1162.1 - 1217.6 36 54 2 1276.4 531 42 57 3.69 42.25 5.62 47.75 - 50.44 36 2.12 3 52.75 1310 1100 1448 93.7 1073.2 142.9 1212.9 - 1281.1 36 54 2 1339.9 590 44 59.25 3.75 44.25 5.75 49.75 - 52.69 36 2.12 2 55.00 1420 1505 95.3 1124.0 146.1 1263.7 - 1338.3 36 54 2 1397.0 639 46 61.5 3.88 46.25 5.88 51.75 - 54.94 40 2.12 2 57.25 1510 1562 98.4 1174.8 149.2 1314.5 - 1395.4 40 54 2 1454.2 680 48 65 4.00 48.25 6.00 54.00 - 58.44 40 2.12 2 60.75 1825 1200 1651 101.6 1225.6 152.4 1371.6 - 1484.3 40 54 2 1543.1 821

as

specified

by

purchaser

• 37 •

1 Alternate designation: 50 lb PreSSUre AT 100˚F (38˚c).

2 Blind Flanges available upon application.

3 When ordering these flanges specify thickness and o.D. of the pipe or component with

which they will be used. Pressure ratings are based on i.D. of pipe or vessel as listed in

“nominal Size” column, with pipe or vessel thickness in the 0.25" (6.4 mm) to 0.5" (12.7 mm) range.

4 These flanges can also be supplied in any other material that can be forged or rolled.


diaMetero

noMinalsize

(insidediaMeter)

flangethickness

cbore

b3

lengththruhub

y

dia.of hubat base

x

dia. of hub at

point of welding

a3

dia. of raised

facer

no. ofholes

diaMeterof

holes

dia. ofbolt

circlek

dia. ofbolts

approx.weight

large diameter forged steel flanges1class 75

PreSSUre VeSSel FlAnGeS2WelDinG neck & SliP-on

For nominal i.D. Vessels4ASTM A181 - clASS 60

welding neck 26 31.5 1.25 3.00 27.12 28.62 32 1 7/8 29.62 95 660 800 31.8 76.2 688.8 727.1 32 26 7/8 752.5 43 28 33.5 1.25 3.00 29.12 30.62 36 1 7/8 31.62 105 711 85 31.8 76.2 739.8 777.9 36 26 7/8 803.3 47 30 35.5 1.25 3.00 31.12 32.62 36 1 7/8 33.62 112 762 902 31.8 76.2 790.6 828.7 36 26 7/8 854.1 51 32 38.25 1.25 3.25 33.38 35.00 36 1.12 1 36.12 141 813 972 31.8 82.6 847.7 889.0 36 29 1 917.6 64 34 40.25 1.25 3.25 35.38 37.00 40 1.12 1 38.12 153 864 1023 31.8 82.6 898.5 939.8 40 29 1 968.4 69 36 42.25 1.25 3.25 37.38 39.00 40 1.12 1 40.12 165 914 1073 31.8 82.6 949.3 990.6 40 29 1 1019.2 74 42 49 1.25 3.50 43.75 45.50 48 1.25 1 1/8 46.75 205 1067 1245 31.8 88.9 1111.3 1155.7 48 32 1 1/8 1187.5 92 48 55 1.25 3.75 49.75 51.50 52 1.25 1 1/8 52.75 245 1219 1397 31.8 95.3 1263.7 1308.1 52 32 1 1/8 1339.9 110 54 61.25 1.38 4.00 56.00 57.75 64 1.25 1 1/8 59.00 305 1372 1556 35.1 101.6 1422.4 1466.9 64 32 1 1/8 1498.6 137 60 67.25 1.62 4.38 62.00 63.75 72 1.25 1 1/8 65.00 410 1524 1708 41.3 111.1 1574.8 1619.3 72 32 1 1/8 1651.0 185 66 74 1.88 4.88 68.0 70.12 72 1.38 1 1/4 71.50 575 1676 1880 47.6 123.8 1727.2 1781.2 72 35 1 1/4 1816.1 259 72 80 2.25 5.25 74.00 76.12 80 1.38 1 1/4 77.50 720 1829 2032 57.2 133.4 1879.6 1933.6 80 35 1 1/4 1968.5 324

26 33 1.25 2.25 28.50 - 30.00 32 1 7/8 31.00 115 660 838 31.8 57.2 723.9 - 762.0 32 26 7/8 787.4 52 28 35 1.25 2.25 30.50 - 32.00 36 1 7/8 33.00 140 711 889 31.8 57.2 774.7 - 812.8 36 26 7/8 838.2 63 30 37 1.25 2.25 32.50 - 34.00 36 1 7/8 35.00 155 762 940 31.8 57.2 825.5 - 863.6 36 26 7/8 889.0 70 32 39.5 1.25 2.50 34.62 - 36.25 40 1.12 1 37.38 165 813 1004 31.8 63.5 879.5 - 920.8 40 29 1 949.3 74 34 41.5 1.25 2.50 36.62 - 38.25 40 1.12 1 39.38 175 864 1054 31.8 63.5 930.3 - 971.6 40 29 1 1000.1 79 36 43.5 1.25 2.50 38.62 - 40.25 44 1.12 1 41.38 190 914 1105 31.8 63.5 981.1 - 1022.4 44 29 1 1050.9 86 42 50 1.25 2.75 44.75 - 46.50 48 1.25 1 1/8 47.75 225 1067 1270 31.8 69.9 1136.6 - 1181.1 48 32 1 1/8 1212.9 101 48 56 1.25 2.88 50.75 - 52.50 56 1.25 1 1/8 53.75 260 1219 1423 31.8 73.0 1289.1 - 1333.5 56 32 1 1/8 1365.3 117 54 62.5 1.38 3.12 57.25 - 59.00 68 1.25 1 1/8 60.25 325 1372 1588 34.9 79.4 1454.2 - 1498.6 68 32 1 1/8 1530.4 146 60 68.5 1.62 3.62 63.25 - 65.00 72 1.25 1 1/8 66.25 440 1524 1740 41.3 92.1 1606.6 - 1651.0 72 32 1 1/8 1682.8 198 66 75.5 1.75 4.00 69.50 - 71.62 72 1.38 1 1/4 73.00 575 1676 1918 44.5 101.6 1765.3 - 1819.2 72 35 1 1/4 1854.2 259 72 81.5 2 4.50 75.50 - 77.62 80 1.38 1 1/4 79.00 725 1829 2070 50.8 114.3 1917.7 - 1971.7 80 35 1 1/4 2006.6 326

as

specified

by

purchaser

as

specified

by

purchaser

as

specified

by

purchaser

slip-0n

• 38 •

pounds

kilograms

incHes

millimetres

1 Blind Flanges are available upon application.

2 When ordering, specify thickness and o.D. of pipe vessel to which flange is

to be welded.

3 Sizes are inSiDe diameters of pipe or shell used with Welding neck

Flanges, and noMinAl outside diameters of pipe or shell used with Slip-on Flanges.

4 These flanges can also be furnished in any other material that can be

forged or rolled.

5 Alternate designation, 150 lb. WSP. at 750˚F (399˚c).


dia.o

weldingneck

cslip-on

c

flangethickness

boreb2

welding neck

yslip-on

y

length thruhub dia. of

hub at base

x

dia. of raised

facer

dia. of hub at

point of welding

a2

3noMinal size

no. ofholes

dia.of

holes

dia. ofbolt

circlek

boltdia.

weldingneck

approx.weight


class 1755

welding neck &SliP-on FlAnGeS1

4ASTM A-105 & A181-clASS 60

26 31.5 1.38 1.38 3.38 2.75 27.62 29.00 28 .88 3/4 29.88 125 110 660 800 34.9 34.9 85.7 69.9 701.7 736.6 28 23 3/4 758.8 56 50 28 33.5 1.38 1.38 3.38 2.75 29.62 31.00 28 .88 3/4 31.88 130 120 711 851 34.9 34.9 85.7 69.9 752.5 787.4 28 23 3/4 809.6 59 54 30 35.75 1.38 1.38 3.62 2.75 31.88 33.25 36 .88 3/4 34.12 145 135 762 908 34.9 34.9 92.1 69.9 809.6 844.6 36 23 3/4 866.8 65 61 32 37.75 1.38 1.38 3.62 2.75 33.88 32.25 36 .88 3/4 36.12 165 145 813 959 34.9 34.9 92.1 69.9 860.4 895.4 36 23 3/4 917.6 74 65 34 40.25 1.50 1.75 3.75 3.38 35.88 37.38 36 1 7/8 38.38 190 205 864 1023 38.1 44.5 95.3 85.7 911.2 949.3 36 26 7/8 974.7 86 92 36 42.25 1.50 1.75 3.75 3.38 37.88 39.38 36 1 7/8 40.38 210 215 914 1074 38.1 44.5 95.3 85.7 962.2 1000.1 36 26 7/8 1025.5 95 97 38 44.25 1.75 2.00 4.12 3.75 39.88 41.38 36 1 7/8 42.38 235 255 965 1124 44.5 50.8 104.8 95.3 1012.8 1050.9 36 26 7/8 1076.3 106 115 40 46.25 1.75 2.00 4.12 4.00 41.88 43.38 40 1 7/8 44.38 250 275 1016 1175 44.5 50.8 104.8 101.6 1063.6 1101.7 40 26 7/8 1127.1 113 124 42 49 2.00 2.38 4.50 4.38 44.12 45.75 40 1.12 1 46.88 345 370 1067 1245 50.8 60.3 114.3 111.1 1120.8 1162.1 40 29 1 1190.6 155 167 44 51 2.00 2.38 4.50 4.38 46.12 47.75 40 1.12 1 48.88 365 385 1118 1296 50.8 60.3 114.3 111.1 1171.6 1212.9 40 29 1 1241.4 164 173 46 53 2.00 2.38 4.50 4.62 48.12 49.75 40 1.12 1 50.88 380 410 1168 1347 50.8 60.3 114.3 117.5 1222.4 1263.7 40 29 1 1292.2 71 185 48 55 2.25 2.62 4.88 4.88 50.12 51.75 44 1.12 1 52.88 425 455 1219 1397 57.2 66.7 123.8 123.8 1273.2 1314.5 44 29 1 1343.0 191 205 50 57 2.25 2.62 4.88 4.88 52.12 53.75 44 1.12 1 54.88 455 475 1270 1448 57.2 66.7 123.8 123.8 1324.0 1365.3 44 29 1 1393.8 205 214 52 59.5 2.62 3.00 5.38 5.38 54.25 56.00 44 1.25 1 1/8 57.25 550 605 1321 1512 66.7 76.2 136.5 136.5 1378.0 1422.4 44 32 1 1/8 1454.2 248 272 54 61.5 2.62 3.00 5.38 5.38 56.25 58.00 44 1.25 1 1/8 59.25 590 625 1372 1562 66.7 76.2 136.5 136.5 1428.8 1473.2 44 32 1 1/8 1505.0 266 281 60 67.5 2.75 3.12 5.75 5.88 62.25 64.00 48 1.25 1 1/8 65.25 675 725 1524 1715 69.9 79.4 146.1 149.2 1581.2 1625.6 48 32 1 1/8 1657.4 304 326 66 73.5 3.12 4.00 6.12 .688 68.50 70.00 56 1.25 1 1/8 71.25 825 1020 1676 1867 79.4 101.6 155.6 174.6 1739.9 1778.0 56 32 1 1/8 1809.8 371 459 72 80 3.62 5.00 6.62 8.00 74.50 76.50 64 1.25 1 1/8 77.75 1060 1400 1829 2032 92.1 127.0 168.3 203.2 1892.3 1943.1 64 32 1 1/8 1974.9 477 630 84 94 3.00 5.00 7.00 8.50 88.00 90.12 72 1.38 1 1/4 91.50 1550 2225 2134 2388 76.2 127.0 177.8 215.9 2235.2 2289.2 72 35 1 1/4 2324.1 698 1001 96 106 3.5 5.00 7.50 9.00 100.0 102.12 88 1.38 1 1/4 103.50 1975 2575 2438 2693 88.9 127.0 190.5 288.6 2540.0 2594.0 88 35 1 1/4 2628.9 889 1159

as

specified

by

purchaser

as

specified

by

purchaser

slip-on

• 39 •

pounds

kilograms

incHes

millimetres

1 Blind Flanges are available upon application.

2 When ordering, specify thickness and o.D. of pipe vessel to which flange is

to be welded.

3 Sizes are inSiDe diameters of pipe or shell used with Welding neck

Flanges, and nominal outside diameters of pipe or shell used with Slip-on Flanges.

4 These flanges can also be furnished in any other material that can be

forged or rolled.

5 Alternate designation, 300 lb. WSP. at 750˚F (399˚c).


dia.o

weldingneck

cslip-on

c

flangethickness

boreb2

welding neck

yslip-on

y

length thruhub dia. of

hub at base

x

dia. of raised

facer

dia. of hub at

point of welding

a2

3noMinal size

no. ofholes

dia.of

holes

dia. ofbolt

circlek

boltdia.

weldingneck

approx.weight


5class 300welding neck &

SliP-on FlAnGeS1

4ASTM A-105 & A181- clASS 60

26 32.75 2.50 2.50 5.00 4.50 27.88 29.50 28 1.12 1 30.62 250 230 660 832 63.5 63.5 127.0 114.3 708.0 749.3 28 29 1 777.9 113 104 28 34.75 2.50 2.50 5.00 4.50 29.88 31.50 28 1.12 1 32.62 265 255 711 883 63.5 63.5 127.0 114.3 758.8 800.1 28 29 1 828.7 119 115 30 37 2.62 2.62 5.25 4.75 32.12 33.75 32 1.12 1 34.88 310 290 762 940 66.7 66.7 133.4 120.7 816.0 857.3 32 29 1 885.8 140 131 32 39 2.75 2.75 5.50 5.00 34.12 35.75 36 1.12 1 36.88 340 325 813 991 69.9 69.9 139.7 127.0 866.8 908.1 36 29 1 936.6 153 146 34 41 2.88 2.88 5.75 5.12 36.12 37.75 40 1.12 1 38.88 385 350 864 1042 73.0 73.0 146.1 130.2 917.6 958.9 40 29 1 987.4 173 158 36 43.75 3.12 3.12 6.13 5.62 38.5 40.25 40 1.25 1 1/8 41.50 475 460 914 1112 79.4 79.4 155.6 142.9 977.9 1022.4 40 32 1 1/8 1054.1 214 207 38 45.75 3.12 3.12 6.13 5.62 40.5 42.25 40 1.25 1 1/8 43.50 520 485 965 1162 79.4 79.4 155.6 142.9 1028.7 1073.2 40 32 1 1/8 1104.9 234 218 40 47.75 3.25 3.25 6.25 5.88 42.5 44.25 44 1.25 1 1/8 45.50 550 525 1016 1213 82.6 82.6 158.8 149.2 1079.5 1224.0 44 32 1 1/8 1155.7 248 236 42 50 3.50 3.50 6.50 6.12 44.75 46.50 48 1.25 1 1/8 47.75 650 625 1067 1270 88.9 88.9 165.1 155.6 1136.7 1181.1 48 32 1 1/8 1212.9 293 281 44 52.75 3.75 3.75 6.75 6.75 46.75 48.88 44 1.38 1 1/4 50.25 770 760 1118 1340 95.3 95.3 171.5 171.5 1187.5 1241.4 44 35 1 1/4 1276.4 347 342 46 54.75 4.25 4.25 7.25 7.25 48.75 50.88 48 1.38 1 1/4 52.25 895 880 1168 1391 108.0 108.0 184.2 184.2 1238.3 1292.2 48 35 1 1/4 1327.2 403 396 48 56.75 4.25 4.25 7.25 7.25 50.75 52.88 48 1.38 1 1/4 54.25 925 925 1219 1442 108.0 108.0 184.2 184.2 1289.1 1343.0 48 35 1 1/4 1378.0 416 416 52 61.5 4.25 - 7.50 - 55 57.25 52 1.5 1 3/8 58.75 1075 - 1321 1562 108.0 - 190.5 - 1397.0 1454.2 52 35 1 3/8 1492.3 484 - 54 63.5 4.50 4.75 7.75 8.25 57 59.25 52 1.5 1 3/8 60.75 1225 1160 1372 1613 114.3 120.7 196.9 209.6 1447.8 1505.0 52 35 1 3/8 1543.1 551 522 60 69.5 4.50 5.00 8.00 8.50 63 65.25 60 1.5 1 3/8 66.75 1325 1470 1524 1766 114.3 127.0 203.2 215.9 1600.2 1657.4 60 35 1 3/8 1695.5 596 662 66 77 4.00 - .50 - 70 72.38 60 1.62 1 1/2 74.00 1680 - 1676 1956 101.6 - 215.9 - 1778.0 1838.3 60 42 1 1/2 1879.6 756 - 72 83 4.00 - 9.00 - 76 78.38 72 1.62 1 1/2 80.00 1875 - 1829 2109 101.6 - 228.6 - 1930.4 1990.7 72 42 1 1/2 2032.0 844 - 84 96.5 5.00 - 10.00 - 89 91.50 80 1.75 1 5/8 93.25 2950 - 2134 2451 127.0 - 254.0 - 2260.6 2324.1 80 45 1 5/8 2368.6 1328 - 96 109.25 6.25 - 11.25 - 101.25 103.88 84 1.88 1 3/4 105.75 4300 - 2438 2775 158.85 - 285.8 - 2571.8 2638.4 84 48 1 3/4 2686.1 1935 -

as

specified

by

purchaser

as

specified

by

purchaser

slip-on

• 40 •

1 can also be furnished in A181 clASS 70 and A-105, or any other material

that can be forged or rolled.

2 ring and Blind flanges to match AWWA hub flanges are available upon

application.

3 For sizes other than those shown full information is available upon request.

clASS B FlAnGeS have a water service rating at atmospheric temperature of 86 psi. These flanges have the same outside diameter, bolt circle and number of bolts as ASMe/AnSi B16.1 (25 psi cast-iron pipe flanges and flanged fittings).in sizes nPS 48 (Dn 1200) and under they have the same bolts, and in sizes over nPS 48 (Dn 1200) they use larger bolts than specified by this 25 psi standard.They also have the same outside diameter, bolt circle, and number of bolts as ASMe/AnSi B16.1 (125 psi cast-iron pipe flanges and flanged fittings), but use smaller bolts.clASS D FlAnGeS have a water service rating at atmospheric temperature;

sizes nPS 6 to nPS 12 (Dn 150 to Dn 300) inclusive, 175 psi; sizes larger than nPS 12 (Dn 300) 150 psi. These flanges have the same diameter and drilling as class 125 cast-iron flanges. (ASMe/AnSi B16.1).clASS e FlAnGeS have a water service rating at atmospheric temperature of 275 psi. These flanges have the same diameter and drilling as class 125 cast-iron flanges (ASMe/AnSi B16.1). in sizes nPS 24 (Dn 600) and smaller they also match ASMe/AnSi B16.5 150 psi standard for steel flanges.All Flanges: carbon steel bolts should be used. cloth-inserted rubber gaskets .06" (1.6 mm) thick should be used and should extend from the i.D. of flange to at least the inside edge of the bolt holes.

flangeoutside

dia.o

classb & d

classe

flangethickness c

boredia.

pclassb & d

classb & d

classb

dia. of bolt

circlek

classb & d

classe

classe

no. of holes class

eclassd & e

length thruhub y

dia. of hubat base x

nps3

dn

approx.weight

dia. ofholes

large diameter forged steel flanges

AWWA c207-55 hUB FlAnGeS2

ASTM A181-clASS 60

6 11 .56 1.00 1.25 1.56 7.56 7.56 8 9.50 .75 .88 14 19 150 280 14.3 25.4 31.8 39.7 192.1 192.0 8 241.3 20 23 6.3 9 8 13.5 .56 1.25 1.25 1.75 9.69 9.69 8 11.75 .75 .88 18 32 200 343 14.3 31.8 31.8 44.5 246.1 246.0 8 298.5 20 23 8 14.5 10 16 .69 1.19 1.25 1.94 12.00 12.00 12 14.25 .75 1 27 42 250 407 17.5 30.2 31.8 49.2 304.8 304.8 12 362.0 20 26 12 19 12 19 .69 1.25 1.25 2.19 14.38 14.38 12 17.00 .75 1 41 65 300 483 17.5 31.8 31.8 55.6 365.1 365.1 12 431.8 20 26 18.5 29 14 21 .75 1.38 1.25 2.25 15.75 15.75 12 18.75 .88 1.12 45 86 350 534 19.1 34.9 31.8 57.2 400.1 400.0 12 476.3 23 29 20 39 16 23.5 .75 1.44 1.25 2.50 18.00 18.00 16 21.25 .88 1.12 57 92 400 597 19.1 36.5 31.8 63.5 457.2 457.2 16 559.8 23 29 25.5 42 18 25 .75 1.56 1.25 2.69 19.88 19.88 16 22.75 .88 1.25 59 118 450 635 19.1 39.7 31.8 68.3 504.8 504.8 16 577.9 23 32 26.5 53 20 27.5 .75 1.69 1.25 2.88 22.00 22.00 20 25.00 .88 1.25 68 153

500 699 19.1 42.9 31.8 73.0 558.8 558.8 20 635.0 23 32 31 69 22 29.5 1 1.81 1.75 3.12 24.25 24.25 20 27.25 .88 1.38 75 177 550 750 25.4 46.0 44.5 79.4 616.0 616.0 20 692.2 23 35 34 80 24 32 1 1.88 1.75 3.25 26.12 26.12 20 29.50 .88 1.38 117 212 600 813 25.4 47.6 44.5 82.6 663.6 663.6 20 749.3 23 35 53 96 26 34.25 1 2.00 1.75 3.38 28.50 28.50 24 31.75 .88 1.38 126 235 650 870 25.4 50.8 44.5 85.7 723.9 723.9 24 806.5 23 35 57 106 28 36.5 1 2.06 1.75 3.44 30.50 30.75 28 34.00 .88 1.38 139 273 700 927 25.4 52.4 44.5 87.3 774.7 781.1 28 863.6 23 35 63 123 30 38.75 1 2.12 1.75 3.50 32.50 32.75 28 36.00 1 1.62 152 310 750 985 25.4 54.0 44.5 88.9 825.5 831.9 28 914.4 26 42 68 140 32 41.75 1.12 2.25 1.75 3.62 34.75 35.00 28 38.50 1 1.62 208 370 800 1061 28.6 57.2 44.5 92.1 882.7 889.0 28 977.9 26 42 94 167 36 46 1.12 2.38 1.75 3.75 38.75 39.25 32 42.75 1 1.62 235 460 900 1169 28.6 60.3 44.5 95.3 984.3 997.0 32 1085.9 26 42 106 207 40 50.75 1.12 2.50 1.75 3.88 43.00 43.75 36 47.25 1 1.62 281 527 1000 1289 28.6 63.5 44.5 98.4 1092.2 1111.3 36 1200.2 26 42 127 259 42 53 1.25 2.62 1.75 4.00 45.00 46.00 36 49.50 1.12 1.62 327 660 1100 1347 31.8 66.7 44.5 101.6 1143.0 1168.4 36 1257.3 29 42 147 297 48 59.5 1.38 2.75 2.50 4.12 51.00 52.25 44 56.00 1.12 1.62 420 800 1200 1512 34.9 69.9 63.5 104.8 1295.4 1327.3 44 1422.4 29 42 189 360 60 73 1.5 3.12 2.75 4.50 63.00 65.25 52 69.25 1.38 1.88 645 1275 1500 1855 38.1 79.4 69.9 114.3 1600.2 1657.4 52 1759.0 35 48 291 574 72 86.5 1.5 3.50 2.75 5.00 75.00 78.50 60 82.50 1.38 1.88 855 1950 1800 2197 38.1 88.9 69.9 127.0 1905.0 1993.9 60 2095.5 35 48 385 878 96 113.25 2.0 4.25 3.25 5.75 100.0 102.75 68 108.5 1.88 2.38 1730 3250 2400 2877 50.8 108.0 82.6 146.1 2540.0 2609.9 68 2755.9 48 61 779 1463

as

specified

by

purchaser

• 41 •

pounds

kilograms

incHes

millimetres

1 includes .06" (1.5mm) raised face.

2 Materials covered in this Standard are as in ASMe/AnSi B16.5 except

nickel based alloys are excluded.

3 Bore diameter as specified by Purchaser.


dia.o

flange thickness

(Min.)2

c

length thruhub

y1

hubdia.

at basex

hub dia. at point

of welding

a

raised facedia.

r

no. of bolt

holes

dia.of boltholes

dia.of boltcircle

filletradius(Min.)

r

weldingneck

approx.weight


pipe line flangesclASS 150 (Pn 20)

WelDinG neck & BlinD2ASTM A-105

26 34.25 2.69 4.75 26.62 26.00 29.50 24 1.38 31.75 .38 300 677 650 870 68.5 121 675 660 749 24 35 806 10 136 307 28 36.50 2.81 4.94 28.62 28.00 31.50 28 1.38 34.00 .44 315 833 700 925 71.5 125 725 711 800 28 35 863 11 143 378 30 38.75 2.94 5.38 30.75 30.00 33.75 28 1.38 36.00 .44 360 963 750 985 74.5 137 780 762 857 28 35 914 11 163 437 32 41.75 3.18 5.69 32.75 32.00 36.00 28 1.62 38.50 .44 435 1200 800 1060 81.0 144 830 813 914 28 41 978 11 197 544 34 43.75 3.25 5.88 34.75 34.00 38.00 32 1.62 40.50 .50 465 1342 1110 82.5 149 380 863 965 32 41 1029 13 211 609 36 46.00 3.56 6.18 36.75 36.00 40.25 32 1.62 42.75 .50 520 1540 900 1170 90.5 157 935 914 1022 32 41 1086 13 236 698 38 48.75 3.44 6.19 39.00 38.00 42.25 32 1.62 45.25 .50 778 1780 1240 87.4 157 990 965 1073 32 41 1150 13 353 807 40 50.75 3.56 6.44 41.00 40.00 44.25 36 1.62 47.25 .50 831 1992 1000 1290 90.5 164 1040 1016 1124 36 41 1200 13 377 903 42 53.00 3.81 6.75 43.00 42.00 47.00 36 1.62 49.50 .50 966 2332 1100 1345 97.0 171 1090 1067 1194 36 41 1257 13 438 1058 44 55.25 4.00 7.00 45.00 44.00 49.00 40 1.62 51.75 .50 1058 2656 1405 102.0 178 1145 1118 1245 40 41 1314 13 480 1205 46 57.25 4.06 7.31 47.12 46.00 51.00 40 1.62 53.75 .50 1131 2903 1455 103.0 186 1195 1168 1295 40 41 1365 13 513 1317 48 59.50 4.25 7.56 49.12 48.00 53.50 44 1.62 56.00 .50 1248 3276 1200 1510 108.0 192 1250 1219 1359 44 41 1422 13 566 1486 50 61.75 4.38 8.00 51.25 50.00 55.50 44 1.88 58.25 .50 1351 3605 1570 111.0 203 1300 1270 1410 44 48 1480 13 613 1635 52 64.00 4.56 8.25 53.25 52.00 57.50 44 1.88 60.50 .50 1508 4043 1300 1625 116.0 210 1355 1321 1460 44 48 1537 13 684 1834 54 66.25 4.75 8.50 55.25 54.00 59.50 44 1.88 62.75 .50 1667 4521 1400 1685 121.0 216 1405 1372 1511 44 48 1594 13 756 2051 56 68.75 4.88 9.00 57.38 56.00 62.00 48 1.88 65.00 .50 1817 4981 1745 124.0 229 1455 1422 1575 48 48 1651 13 824 2259 58 71.00 5.06 9.25 59.38 58.00 64.00 48 1.88 67.25 .50 2006 5540 1805 129.0 235 1510 1473 1626 48 48 1708 13 910 2513 60 73.00 5.19 9.44 61.38 60.00 66.00 52 1.88 69.25 .50 2108 6000 1500 1855 132.0 240 1560 1524 1676 52 48 1759 13 956 2722

blindnpsdn

• 42 •

pounds

kilograms

incHes

millimetres

1 includes .06" (1.5 mm) raised face.




drillingflange thickness3

flangeoutside

dia.o

weldingneck

cblind

e

hubdia.

at basex

length thruhub

y1

hub dia. at point

of welding

a

raised facedia.

r

no. of bolt

holes

dia.of boltholes

dia.of boltcircle

filletradius(Min.)

r

weldingneck

approx.weight


WelDinG neck & BlinDclASS 300 (Pn 50)ASMe B16.47 SerieS A2ASTM A-105

26 38.25 3.12 3.31 7.25 28.38 26.00 29.50 28 1.75 34.50 .38 615 1116 650 970 79.5 84.0 184 720 660 749 28 44 876 10 279 506 28 40.75 3.38 3.56 7.75 30.50 28.00 31.50 28 1.75 37.00 .44 750 1362 700 1035 85.5 90.5 197 775 711 800 28 44 940 11 340 618 30 43.00 3.62 3.75 8.25 32.56 30.00 33.75 28 1.88 39.25 .44 858 1590 750 1090 92.0 95.0 210 825 762 857 28 48 997 11 390 721 32 45.25 3.88 3.94 8.75 34.69 32.00 36.00 28 2.00 41.50 .44 960 1862 800 1150 98.5 100 222 880 813 914 28 51 1054 11 435 845 34 47.50 4.00 4.12 9.12 36.88 34.00 38.00 28 2.00 43.50 .50 1110 2134 1205 102 105 232 935 863 965 28 51 1105 13 504 968 36 50.00 4.12 4.38 9.50 39.00 36.00 40.25 32 2.12 46.00 .50 1223 2586 900 1270 105 111 241 990 914 1022 32 54 1168 13 560 1173 38 46.00 4.25 4.25 7.12 39.12 38.00 40.50 32 1.62 43.00 .50 1170 108 108 181 995 965 1029 32 41 1092 13 40 48.75 4.50 4.50 7.62 41.25 40.00 42.75 32 1.75 45.50 .50 1000 1240 114 114 194 1050 1016 1086 32 44 1156 13 42 50.75 4.69 4.69 7.88 43.25 42.00 44.75 32 1.75 47.50 .50 1100 1290 119 119 200 1100 1067 1137 32 44 1206 13 44 53.25 4.88 4.88 8.12 45.25 44.00 47.00 32 1.88 49.75 .50 1355 124 124 206 1150 1118 1194 32 48 1264 13 46 55.75 5.06 5.06 8.50 47.38 46.00 49.00 28 2.00 52.00 .50 1415 129 129 216 1205 1168 1245 28 51 1321 13 48 57.75 5.25 5.25 8.81 49.38 48.00 51.25 32 2.00 54.00 .50 1200 1465 133 133 224 1255 1219 1314 32 51 1372 13 50 60.25 5.50 5.50 9.12 51.38 50.00 53.50 32 2.12 56.25 .50 1530 140 140 232 1305 1270 1359 32 54 1429 13 52 62.25 5.69 5.69 9.38 53.38 52.00 55.50 32 2.12 58.25 .50 1300 1580 144 144 238 1355 1321 1410 32 54 1480 13 54 65.25 6.00 6.00 9.94 55.50 54.00 57.75 28 2.38 61.00 .50 1400 1660 152 152 252 1410 1372 1467 28 60 1549 13 56 67.25 6.06 6.06 10.25 57.62 56.00 59.75 28 2.38 63.00 .50 1710 154 154 260 1465 1422 118 28 60 1600 13 58 69.25 6.25 6.25 10.50 59.62 58.00 62.00 32 2.38 65.00 .50 1760 159 159 267 1515 1473 1575 32 60 1651 13 60 71.25 6.44 6.44 10.75 61.62 60.00 64.00 32 2.38 67.00 .50 1500 1810 164 164 273 1565 1524 1626 32 60 1702 13

blindnpsdn

3

• 43 •

incHes

millimetres

pounds

kilograms

1 Does not include .25" (6.5mm) raised face.

2 Material covered in this Standard are as in ASMe/AnSi B16.5 except nickel based alloys are excluded.


4 These flanges can also be supplied in any material that can be forged or rolled.


flangeoutside

dia.o

weldingneck

cblind

e

hubdia.

at basex

length thruhub

y1

hub dia. at point

of welding

a

raised facedia.

r

no. of bolt

holes

dia.of boltholes

dia.of boltcircle

filletradius(Min.)

r

weldingneck

approx.weight


pipe line flangesclASS 400 (Pn 68)

WelDinG neck & BlinDASMe B16.47 SerieS A

2ASTM A-105

26 38.25 3.50 3.88 7.62 28.62 26.00 29.50 28 1.88 34.50 .44 769 1226 650 970 89.0 98.5 194 725 660 749 28 48 876 11 349 556 28 40.75 3.75 4.12 8.12 30.81 28.00 31.50 28 2.00 37.00 .50 902 1483 700 1035 95.0 105 206 785 711 800 28 51 940 13 409 673 30 43.00 4.00 4.38 8.62 32.94 30.00 33.75 28 2.12 39.25 .50 1025 1760 750 1090 102 111 219 835 762 857 28 54 997 13 465 798 32 45.25 4.25 4.56 9.12 35.00 32.00 36.00 28 2.12 41.50 .50 1188 2036 800 1150 108 116 232 890 813 914 28 54 1054 13 539 924 34 47.50 4.38 4.81 9.50 37.19 34.00 38.00 28 2.12 43.50 .56 1340 2374 1205 111 122 241 945 863 965 28 54 1105 14 608 1077 36 50.00 4.50 5.06 9.88 39.38 36.00 40.25 32 2.12 46.00 .56 1520 2756 900 1270 114 129 251 1000 914 1022 32 54 1168 14 689 1250 38 47.50 4.88 4.88 8.12 39.50 38.00 40.5 32 1.88 44.00 .56 1205 124 124 206 1005 965 1035 32 48 1118 14 40 50.00 5.12 5.12 8.50 41.50 40.00 43.00 32 2.00 46.25 .56 1000 1270 130 130 216 1055 1016 1092 32 51 1175 14 42 52.00 5.25 5.25 8.81 43.62 42.00 45.00 32 2.00 48.25 .56 1100 1320 133 133 224 1110 1067 1143 32 51 1226 14 44 54.50 5.50 5.50 9.18 45.62 44.00 47.25 32 2.12 50.50 .56 1385 140 140 233 1160 1118 1200 32 54 1283 14 46 56.75 5.75 5.75 9.62 47.75 46.00 49.50 36 2.12 52.75 .56 1440 146 146 244 1215 1168 1257 36 54 1340 14 48 59.50 6.00 6.00 10.12 49.88 48.00 51.50 28 2.38 55.25 .56 1200 1510 152 152 257 1265 1219 1308 28 60 1403 14 50 61.75 6.19 6.25 10.56 52.00 50.00 53.62 32 2.38 57.50 .56 1570 157 159 268 1320 1270 1362 32 60 1460 14 52 63.75 6.38 6.44 10.88 54.00 52.00 55.62 32 2.38 59.50 .56 1300 1620 162 164 276 1370 1321 1413 32 60 1511 14 54 67.00 6.69 6.75 11.38 56.12 54.00 57.88 28 2.62 62.25 .56 1400 1700 170 171 289 1425 1372 1470 28 67 1581 14 56 69.00 6.88 6.94 11.75 58.25 56.00 60.12 32 2.62 64.25 .56 1755 175 176 298 1480 1422 1527 32 67 1632 14 58 71.00 7.00 7.12 12.06 60.25 58.00 62.12 32 2.62 66.25 .56 1805 178 181 306 1530 1473 1527 32 68 1683 14 60 74.25 7.31 7.44 12.56 62.38 60.00 64.38 32 2.88 69.00 .56 1500 1885 186 189 319 1585 1524 1527 32 73 1753 14

blindnpsdn

3

• 44 •

pounds

kilograms

incHes

millimetres

1 includes .25" (6.5 mm) raised face.





flangeoutside

dia.o

weldingneck

cblind

e

hubdia.

at basex

length thruhub

y1

hub dia. at point

of welding

a

raised facedia.

r

no. of bolt

holes

dia.of boltholes

dia.of boltcircle

filletradius(Min.)

r

weldingneck

approx.weight


pipe line flangesclASS 600 (Pn 100)WelDinG neck & BlinDAnSi/ASMe B16.47 SerieS A2ASTM A-105

26 40.00 4.25 4.94 8.75 29.44 26.00 29.50 28 2.00 36.00 .50 963 1734 650 1015 108 125 222 748 660 749 28 51 914 13 437 786 28 42.25 4.38 5.19 9.25 31.62 28.00 31.50 28 2.12 38.00 .50 1120 1029 700 1075 111 132 235 803 711 800 28 54 965 13 508 916 30 44.50 4.50 5.50 9.75 33.94 30.00 33.75 28 2.12 40.25 .50 1232 2398 750 1130 114 140 248 862 762 857 28 54 1022 13 559 1088 32 47.00 4.62 5.81 10.25 36.12 32.00 36.00 28 2.38 42.50 .50 1500 2815 800 1195 117 148 260 917 813 914 28 60 1080 13 680 1277 34 49.00 4.75 6.06 10.62 38.31 34.00 38.00 28 2.38 44.50 .56 1580 3206 1245 121 154 270 973 863 965 28 60 1130 14 717 1454 36 51.75 4.88 6.38 11.12 40.62 36.00 40.25 28 2.38 47.00 .56 1750 3744 900 1315 124 162 283 1032 914 1022 28 60 1194 14 794 1698 38 50.00 6.00 6.12 10.00 40.25 38.00 41.50 28 2.38 45.75 .56 1270 152 156 254 1022 965 1054 28 60 1162 14 40 52.00 6.25 6.38 10.38 42.25 40.00 43.75 32 2.38 47.75 .56 1000 1320 159 162 264 1073 1016 1111 32 60 1213 14 42 55.25 6.62 6.75 11.00 44.28 42.00 46.00 28 2.62 50.50 .56 1100 1405 168 171 279 1125 1067 1168 28 67 1283 14 44 57.25 6.81 7.00 11.38 46.50 44.00 48.25 32 2.62 52.50 .56 1455 173 178 289 1181 1118 1226 32 67 1327 14 46 59.50 7.06 7.31 11.81 48.62 46.00 50.25 32 2.62 54.75 .56 1510 179 186 300 1235 1168 1276 32 67 1391 14 48 62.75 7.44 7.69 12.44 50.75 48.00 52.50 32 2.88 57.50 .56 1200 1595 189 195 316 1289 1219 1283 32 73 1467 14 50 65.75 7.75 8.00 12.94 52.88 50.00 54.50 28 3.12 60.00 .56 1670 198 203 329 1343 1270 1384 28 79 1524 14 52 67.75 8.00 8.25 13.25 54.88 52.00 56.50 32 3.12 62.00 .56 1300 1720 203 210 337 1394 1321 1435 32 79 1575 14 54 70.00 8.25 8.56 13.75 57.00 54.00 58.75 32 3.12 64.25 .56 1400 1780 210 217 349 1448 1372 1492 32 79 1632 14 56 73.00 8.56 8.88 14.25 59.12 56.00 60.75 32 3.38 66.75 .62 1855 217 225 362 1502 1422 1543 32 86 1695 16 58 75.00 8.75 9.12 14.56 61.12 58.00 63.00 32 3.38 68.75 .62 1905 222 232 370 1552 1473 1600 32 86 1746 16 60 78.50 9.19 9.56 15.31 63.38 60.00 65.25 28 3.62 71.75 .69 1500 1995 233 243 389 1610 1524 1657 28 92 1822 17

blindnpsdn

3

• 45 •

incHes

millimetres

pounds

kilograms


2 Materials covered in this Standard are as in ASMe/AnSi B16.5, except




flangeoutside

dia.o

weldingneck

cblind

e

hubdia.

at basex

length thruhub

y1

hub dia. at point

of welding

a

raised facedia.

r

no. of bolt

holes

dia.of boltholes

dia.of boltcircle

filletradius(Min.)

r

weldingneck

approx.weight


pipe line flanges2clASS 900 (Pn 150)

WelDinG neck & BlinDAnSi/ASMe B16.47 SerieS A

4ASTM A-105

26 42.75 5.50 6.31 11.25 30.50 26.00 29.50 20 2.88 37.50 .44 1614 2423 650 1085 140 160 286 775 660 749 20 73 952 11 732 1099 28 46.00 5.62 6.75 11.75 32.75 28.00 31.50 20 3.12 40.25 .50 1894 3012 700 1170 143 171 298 832 711 800 20 79 1022 13 859 1366 30 48.50 5.88 7.18 12.25 35.00 30.00 33.75 20 3.12 42.75 .50 2196 3564 750 1230 149 183 311 889 762 857 20 79 1086 13 996 1617 32 51.75 6.25 7.62 13.00 37.25 32.00 36.00 20 3.38 45.50 .50 2628 4286 800 1315 159 194 330 946 813 914 20 86 1156 13 1192 1944 34 55.00 6.50 8.06 13.75 39.62 34.00 38.00 20 3.62 48.25 .56 3100 5207 1395 165 205 349 1006 864 965 20 92 1226 14 1407 2362 36 57.50 6.75 8.44 14.25 41.88 36.00 40.25 20 3.62 50.75 .56 3535 6003 900 1460 171 214 362 1064 914 1022 20 92 1289 14 1603 2723 38 57.50 750 8.50 13.88 42.75 38.00 43.25 20 3.62 50.75 .75 1460 190 216 352 1073 965 1099 20 92 1289 19 40 59.50 7.75 8.81 14.31 44.38 40.00 45.75 24 3.62 52.75 .81 1000 1510 197 224 364 1127 1016 1162 24 92 1340 21 42 61.50 8.12 9.12 14.62 46.31 42.00 47.75 24 3.62 54.75 .81 1100 1560 206 232 37 1176 1067 1213 24 92 1391 21 44 64.88 8.44 9.56 15.38 48.62 44.00 50.00 24 3.88 57.62 .88 1650 214 243 391 1235 1118 1270 24 98 1464 22 46 68.25 8.88 10.06 16.18 50.88 46.00 52.50 24 4.12 60.50 .88 1735 225 256 411 1292 1168 1334 24 105 1537 22 48 70.25 9.19 10.38 16.50 52.88 48.00 54.50 24 4.12 62.50 .94 1200 1785 233 264 419 1343 1219 1384 24 105 1588 24

blindnpsdn

3

• 46 •

pounds

kilograms

incHes

millimetres

1 Also available in class 75. Particulars upon request.

2 Materials covered in this Standard are the same as ASMe/AnSi

B16.5 except nickel base alloys are excluded.

3 Flange Thickness c and length through hub y includes .06"

(1.6 mm) raised face.

For DeTAilS oF WelDinG BeVel, reFer To PAGe 48.

Materials extracted from api standard 605, second edition, october 1978, large diameter carbon steel flanges (nominal pipe size 26 to 60, inclusive; classes 75, 150 and 300) tables 3, b-2 and b-3, reprinted by courtesy of the american petroleum institute.

drilling

flangediaMeter

o

3flangethickness

c

raised facedia.

rbore

b

hub dia. at point

of welding

a

hub dia.at base

x

3lengththruhub

y

filletradius

rnps

dn

no.of

holes

dia. ofbolt

circlek

dia. ofholes

approx.weight

large diametersteel flanges

clASS 150 (Pn 20) AnDclASS 300 (Pn 50)welding neckASTM A-1052

class 150 26 30.94 1.62 28.00 26.06 26.94 3.50 .38 36 .88 29.31 139 650 786 41.3 711.2 662.0 684.2 88.9 9.5 36 22.2 744.5 63 28 32.94 1.75 30.00 28.06 28.94 3.75 .38 40 .88 31.31 163 700 837 44.4 762.0 712.8 735.0 95.2 9.5 40 22.2 795.3 74 30 34.94 1.75 32.00 30.06 31.00 3.94 .38 44 .88 33.31 176 750 887 44.4 812.8 763.6 787.4 100.0 9.5 44 22.2 846.1 80 32 37.06 1.81 34.00 32.06 33.06 4.25 .38 48 .88 35.44 203 800 941 46.0 863.6 814.4 839.8 108.0 9.5 48 22.2 900.1 92 34 39.56 1.94 36.25 34.06 35.12 4.34 .38 40 1.00 37.69 249 4850 1005 49.2 920.8 865.2 892.2 110.3 9.5 40 25.4 957.3 113 36 41.62 2.06 38.25 36.06 37.19 4.62 .38 44 1.00 39.75 284 900 1057 52.4 971.6 916.0 944.6 117.5 9.5 44 25.4 1009.6 129 42 48.25 2.31 44.50 42.12 43.38 5.25 .44 48 1.12 46.12 406 1100 1226 58.7 1130.3 1070.0 1101.7 133.4 11.1 48 28.6 1171.6 184 48 54.81 2.56 50.75 48.12 49.50 5.88 .44 44 1.25 52.56 509 1200 1392 65.1 1289.0 1222.4 1257.3 149.2 11.1 44 31.8 1335.1 231 54 61.00 2.81 56.75 54.12 55.62 6.38 .44 56 1.25 58.75 632 1400 1549 71.4 1441.4 1374.8 1412.9 161.9 11.1 56 31.8 1492.2 287 60 67.94 3.00 63.00 60.12 61.81 7.06 .56 52 1.38 65.44 855 1500 1726 76.2 1600.2 1527.2 1570.0 179.4 14.3 52 34.9 1662.1 388

26 34.12 3.50 29.00 26.19 27.62 5.69 .56 32 1.38 31.62 399 650 867 88.9 736.6 665.2 701.7 144.5 14.3 32 34.9 803.3 181 28 36.25 3.50 31.00 28.19 29.75 5.88 .56 36 1.38 33.75 447 700 921 88.9 787.4 716.0 755.6 149.2 14.3 36 34.9 857.2 203 30 39.00 3.69 33.25 30.25 32.00 6.22 .56 36 1.50 36.25 590 750 991 93.7 844.6 768.4 812.8 158.0 14.3 36 38.1 920.8 268 32 41.50 4.06 35.50 32.25 34.00 6.62 .62 32 1.62 38.50 727 800 1054 103.2 901.7 819.2 863.6 168.3 15.9 32 41.3 977.9 330 34 43.62 4.06 37.50 34.25 36.12 6.81 .62 36 1.62 40.62 787 4850 1108 103.2 952.5 870.0 917.6 173.0 15.9 36 41.3 1031.9 357 36 46.12 4.06 39.75 36.25 38.00 7.12 .62 32 1.75 42.88 893 900 1172 103.2 1009.6 920.8 965.2 181.0 15.9 32 44.4 1089.0 405 42 52.50 4.69 46.00 42.31 44.00 8.06 .62 36 1.88 49.00 1252 1100 1334 119.1 1168.4 1074.7 1117.6 204.8 15.9 36 47.6 1244.6 568 48 59.50 5.06 52.25 48.31 50.31 8.81 .62 40 2.00 55.75 1611 1200 1511 128.6 1327.2 1227.1 1277.9 223.8 15.9 40 50.8 1416.0 731 54 65.88 5.38 58.25 54.31 56.50 9.44 .62 48 2.00 62.12 1979 1400 1673 136.5 1479.6 1379.5 1435.1 239.7 15.9 48 50.8 1578.0 898 60 73.94 5.94 65.00 60.31 62.94 10.69 .69 40 2.38 69.44 2890 1500 1878 150.8 1651.0 1531.9 1598.6 271.5 17.5 40 60.3 1736.7 1311

as

specified

by

customer

as

specified

by

customer

class 300

• 47 •

identificationWeSTlUnD flanges, where the size and design permits, are marked with the following identification data in accordance with ASMe/AnSi B16.5: Trade Mark or name nominal size Primary service pressure B16 (AnSi designation) Material designation heat code

forged flange tolerancesMillimetres in brackets

dimension welding neck & sock. weld

slip-on &sock. weld. threaded blind

lapjoint

1outside Diameter Flange o.D. 24 or less (609.6) ± .06 (1.6) ±.06 (1.6) ±.06 (1.6 ±.06 (1.6) ±.06 (1.6) Flange o.D. over 24 (609.6) ±.12 (3.2) ±.12 (3.2) ±.12 (3.2) —.12 (3.2) ±.12 (3.2)

Bore nPS 10 (Dn 250) & less ±.03 (0.8)2 +.03 (0.8)4 +.03 (0.8) +.03 (0.8) — —0 —0 —0 —

nPS 12 - 18 (Dn 300 - 450) ±.06 (1.6)2 +.06 (1.6)4 +.06 (1.6) +.06 (1.6) — —0 —0 —0 —

nPS 20 (Dn 500) & over + .12 (3.2)2 +.06 (1.6)4 +.06 (1.6) +.06 (1.6) — —.06 (1.6) —0 —0 —0 —

Flange Thickness nPS 18 (Dn 450) & less) +.12 (3.2) +.12 (3.2) +.12 (3.2) +.12 (3.2) +.12 (3.2) —0 —0 —0 —0 —0

nPS 20 (Dn 500) & over +.19 (4.8) +19 (4.8) +.19 (4.8) +.19 (4.8) +.19 (4.8) —0 —0 —0 —0 —0

raised Face Diameter .06 (1.6) raised face ±.03 (0.8) ±.03 (0.8) ±.03 (0.8) — ±.03 (0.8) .25 (6.4) raised face ±.02 (0.5) ±.02 (0.5) ±.02 (0.5) — ±.02 (0.5)

Drilling Bolt circle ±.06 (1.6) ±.06 (1.6) ±.06 (1.6) ±.06 (1.6) ±.06 (1.6) Bolt hole spacing ±.03 (0.8) ±.03 (.08) ±.03 (0.8) ±.03 (0.8) ±.03 (0.8)

eccentricity3 nPS 2 1/2 (Dn 65) & less .03 (0.8) max. .03 (0.8) max. .03 (0.8) max. .03 (0.8) max. — nPS 3 (Dn 80) & larger .06 (1.6) max. .06 (1.6) max. .06 (1.6) max. .06 (1.6) max. —

length Thru hub nPS 4 & less ±.06 — — — — — (Welding neck Flanges) nPS 5 to 10 +.06 -.12 — — — — — nPS 12 & larger +.12 -.18 — — — — — 1Diameter of hub at Base nPS 12 (Dn 300) & less ±.09 (2.4) ±.09 (2.4) ±.09 (2.4) ±.09 (2.4) — -.06 (1.6) -.06 (1.6) -.06 (1.6) -.06 (1.6) — nPS 14 (Dn 350) & over) ±.12 (3.2) ±.12 (3.2) ±.12 (3.2) ±.12 (3.2) —

Diameter of hub at Bevel nPS 5 (Dn 125) & less +.09 (2.4) — — — — -.03 (0.8) — — — —

nPS 6 (Dn 150) & over +.16 (4.0) — — — — ±.03 (0.8) — — — —

Thickness of hub at Bevel All sizes of welding neck Minimum, —12 1/2& of matching nominal pipe wall thickness

1 These tolerances not covered by ASMe/AnSi B16.5.

2 Welding neck and Socket Welding small bore.

3 Between bolt circle diameter and machined facing diameter.

4 Socket Welding Socket.

• 48 •

welding bevels - (weld neck flanges no backing rings)

ASMe/AnSi B16.5, ASMe B16.47

nominal pipe wall thickness T = 0.88 (22.2 mm) max.For wall thickness less than 0.19 in. (4.8) mm) for carbon and ferritic alloy steel, and 0.125 in. (3.2 mm) austenitic alloy steel, ends may be cut square or slightly chamfered at manufacturer’s option.

ASMe/AnSi B16.5, ASMe B16.47

T = more than 0.88" (22.4 mm)

Catalogue Section 3

Although great care has been taken in compiling the information contained in this catalogue, WESTLUND does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data.

W-FSF

forged steel flanges

Documents

pressure class

orifice flanges class

awwa class b

flanges welding neck

large diameter flanges

good welding

long welding necks

socket welding lap joint